INATURALIST Observations 369399320
Unknown, Baja California Sur: 24.145258, -110.339325: : 6/7/2026: Darinka Medina: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 5.00000.

INATURALIST Observations 36435133
La Paz, Baja California Sur: 24.148946, -110.290458: : 9/18/2019: darienescalera2005: 18 Sep 2019 ; Coordinate Uncertainty in Meters: 9919.00000.

INATURALIST Observations 52475418
La Paz, Baja California Sur: 24.239989, -110.2916: : 12/12/2017: Pedro E. Nahuat-Cervera: 12 Dec 2017 ; Coordinate Uncertainty in Meters: 61.00000.

Unknown, Baja California Sur: 24.225448, -110.602512: : 1/3/2026: Che Rodgers: 3 Jan 2026 ; Coordinate Uncertainty in Meters: 577.00000.

Unknown, Baja California Sur: 24.238457, -110.37111: : 6/24/2025: Leonardo M. Mart├¡nez-Campos: 24 Jun 2025 ; Coordinate Uncertainty in Meters: 30090.00000.

La Paz, Baja California Sur: 24.18944, -110.302084: : 3/23/2024: Nohel Alfredo Mart├¡nez Armendares: 23 Mar 2024 ; Coordinate Uncertainty in Meters: 579.00000.

Unknown, Baja California Sur: 24.293745, -110.195546: : 8/4/2024: Gerardo Marr├│n: 4 Aug 2024 ; Coordinate Uncertainty in Meters: 0.11000.

La Paz, Baja California Sur: 24.27837, -110.330806: : 8/3/2019: Luis Alfredo Gonzalez: 3 Aug 2019 ; Coordinate Uncertainty in Meters: 61.00000.

Unknown, Baja California Sur: 24.321638, -110.323817: : 4/29/2025: Alberto Gonz├ílez-Gallina: 29 Apr 2025 ; Coordinate Uncertainty in Meters: 547.00000.

Occurrence Remarks: APFFB; Coordinate Uncertainty in Meters: 29.00000.

La Paz, Baja California Sur: 24.322343, -110.32573: : 4/22/2023: Jose Luis Leon de la Luz: 22 Apr 2023 ; Coordinate Uncertainty in Meters: 2.00000.

La Paz, Baja California Sur: 24.240844, -110.175653: : 2/9/2024: Bajapelagica: 9 Feb 2024 ; Coordinate Uncertainty in Meters: 5.00000.

La Paz, Baja California Sur: 24.303483, -110.306314: : 1/5/2024: Bajapelagica: 5 Jan 2024 ; Coordinate Uncertainty in Meters: 5.00000.

Unknown, Baja California Sur: 24.312061, -110.37062: : 2/6/2026: Bajapelagica: 6 Feb 2026 ; Coordinate Uncertainty in Meters: 30090.00000.

Occurrence Remarks:; Coordinate Uncertainty in Meters: 59.00000.

La Paz, Baja California Sur: 24.323234, -110.324511: : 11/15/2019: Darien y Dario: 15 Nov 2019 ; Coordinate Uncertainty in Meters: 904.00000.

La Paz, Baja California Sur: 24.471916, -110.348611: : 4/4/2016: marioleal85: 4 Apr 2016 ; Coordinate Uncertainty in Meters: 0.11000.

La Paz, Baja California Sur: 24.509779, -110.381801: : 2/29/2016: Gerardo Marr├│n: 29 Feb 2016 ; Coordinate Uncertainty in Meters: 30.00000.

La Paz, Baja California Sur: 24.54961, -110.374398: : 6/29/2011: Ernesto Solana: 29 Jun 2011 ; Coordinate Uncertainty in Meters: 122.00000.

Occurrence Remarks: Common Chuckwalla (Sauromalus ater), southeastern Baja California Sur, Mexico; Coordinate Uncertainty in Meters: 25.00000.

La Paz, Baja California Sur: 24.580812, -110.392784: : 11/4/2025: diego_natura89: 4 Nov 2025 ; Coordinate Uncertainty in Meters: 223.00000.

Unknown, Baja California Sur: 24.508446, -110.375868: : 3/17/2026: Norma Castillo: 17 Mar 2026 ; Coordinate Uncertainty in Meters: 122.00000.

La Paz, Baja California Sur: 24.56738, -110.399799: : 2/27/2021: Astrid Romero Gonz├ílez: 27 Feb 2021 ; Coordinate Uncertainty in Meters: 61.00000.

La Paz, Baja California Sur: 24.494624, -110.388136: : 12/19/2009: Sergio Mart├¡nez: 19 Dec 2009 ; Coordinate Uncertainty in Meters: 122.00000.

La Paz, Baja California Sur: 24.324637, -110.324999: : 8/4/2024: kfycyuen: 4 Aug 2024 ; Coordinate Uncertainty in Meters: 24.00000.

La Paz, Baja California Sur: 24.65723, -110.75665: : 7/17/2021: Enrique Flores Garc├¡a: 17 Jul 2021 ; Coordinate Uncertainty in Meters: 393.00000.

La Paz, Baja California Sur: 24.493979, -110.362914: : 7/26/2015: Majo Monteverde Suarez: 26 Jul 2015 ; Coordinate Uncertainty in Meters: 5584.00000.

La Paz, Baja California Sur: 24.514866, -110.365927: : 7/23/2015: Majo Monteverde Suarez: 23 Jul 2015 ; Coordinate Uncertainty in Meters: 3880.00000.

La Paz, Baja California Sur: 24.473005, -110.36707: : 3/21/2024: Raul Eduardo Gamez Benavides: 21 Mar 2024 ; Coordinate Uncertainty in Meters: 4587.00000.

Guaymas, Sonora: 27.943587, -111.077374: : 6/4/2019: Manuel Maga├▒a: 4 Jun 2019 ; Coordinate Uncertainty in Meters: 61.00000.

Hermosillo, Sonora: 28.861501, -112.024855: : 10/9/2018: lucinachaparro: 9 Oct 2018 ; Coordinate Uncertainty in Meters: 577.00000.

Hermosillo, Sonora: 28.831973, -111.942779: : 1/4/2019: Daniel Valdez: 4 Jan 2019 ; Coordinate Uncertainty in Meters: 42.00000.

Loreto, Baja California Sur: 25.975788, -111.477818: : 4/10/2025: James Bailey: 10 Apr 2025 ; Coordinate Uncertainty in Meters: 61.00000.

Occurrence Remarks: dav; Coordinate Uncertainty in Meters: 61.00000.

Guaymas, Sonora: 27.94276, -111.080246: : 4/3/2021: Usvaldo GC: 3 Apr 2021 ; Coordinate Uncertainty in Meters: 1.11000.

Guaymas, Sonora: 27.943085, -111.079834: : 4/10/2021: Usvaldo GC: 10 Apr 2021 ; Coordinate Uncertainty in Meters: 0.11000.

Guaymas, Sonora: 27.888328, -110.843079: : 7/30/2008: Jorge H. Valdez: 30 Jul 2008 ; Coordinate Uncertainty in Meters: 330.00000.

Guaymas, Sonora: 27.889769, -110.842907: : 7/30/2008: Jorge H. Valdez: 30 Jul 2008 ; Coordinate Uncertainty in Meters: 448.00000.

Guaymas, Sonora: 27.89068, -110.841105: : 7/30/2008: Jorge H. Valdez: 30 Jul 2008 ; Coordinate Uncertainty in Meters: 439.00000.

Hermosillo, Sonora: 28.864128, -112.030554: : 9/4/2021: jorgeortizv: 4 Sep 2021 ; Coordinate Uncertainty in Meters: 0.11000.

Unknown, Baja California Sur: 25.016875, -110.58197: : 4/24/2026: Ernesto Solana: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Unknown, Baja California Sur: 25.824947, -111.222536: : 1/19/2026: Jennifer Ruelas: 19 Jan 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Unknown, Baja California Sur: 25.831808, -111.207928: : 1/19/2026: Jennifer Ruelas: 19 Jan 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Unknown, Baja California Sur: 25.859332, -111.192565: : 1/19/2026: Jennifer Ruelas: 19 Jan 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Unknown, Baja California Sur: 25.798997, -111.342412: : 2/13/2026: Sean Daniels: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Unknown, Baja California Sur: 25.999609, -111.418508: : 2/15/2026: Sean Daniels: 15 Feb 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Unknown, Baja California Sur: 25.819288, -111.221262: : 5/2/2026: Scott Bennett: 2 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Mulege, Baja California Sur: 27.18481, -112.075112: : 1/14/2023: lukerom: 14 Jan 2023 ; Coordinate Uncertainty in Meters: 11.00000.

La Paz, Baja California Sur: 25.022337, -110.671173: : 2/2/2023: skootsky53: 2 Feb 2023 ; Coordinate Uncertainty in Meters: 8.00000.

Mulege, Baja California Sur: 27.200554, -112.07756: : 5/13/1995: Ana Gatica Colima: 13 May 1995 ; Coordinate Uncertainty in Meters: 0.11000.

Loreto, Baja California Sur: 25.734444, -111.27: : 4/29/2023: lupita14orca: 29 Apr 2023 ; Coordinate Uncertainty in Meters: 839.00000.

Loreto, Baja California Sur: 26.365021, -111.466014: : 6/23/2021: Jorge H. Valdez: 23 Jun 2021 ; Coordinate Uncertainty in Meters: 8.00000.

Loreto, Baja California Sur: 26.378172, -111.432123: : 6/23/2021: Jorge H. Valdez: 23 Jun 2021 ; Coordinate Uncertainty in Meters: 8.00000.

Loreto, Baja California Sur: 26.36023, -111.464911: : 6/25/2021: Jorge H. Valdez: 25 Jun 2021 ; Coordinate Uncertainty in Meters: 1.11000.

Loreto, Baja California Sur: 25.80994, -111.258703: : 3/29/2019: Carlos Gaj├│n Berm├║dez: 29 Mar 2019 ; Coordinate Uncertainty in Meters: 2651.00000.

Mulege, Baja California Sur: 27.226405, -112.085878: : 11/10/2018: Bradford Hollingsworth: 10 Nov 2018 :
Occurrence Remarks: Isla San Marcos; Coordinate Uncertainty in Meters: 3.00000.

Mulege, Baja California Sur: 27.226425, -112.085962: : 11/10/2018: Bradford Hollingsworth: 10 Nov 2018 :
Occurrence Remarks: Isla San Marcos; Coordinate Uncertainty in Meters: 3.00000.

Loreto, Baja California Sur: 25.966617, -111.490735: : 4/30/2023: Tom Haglund: 30 Apr 2023 ; Coordinate Uncertainty in Meters: 238.00000.

Occurrence Remarks:; Coordinate Uncertainty in Meters: 0.11000.

Puerto Penasco, Sonora: 31.555657, -113.471967: : 9/30/2022: Caroline: 30 Sep 2022 ; Coordinate Uncertainty in Meters: 21.00000.

Puerto Penasco, Sonora: 31.555117, -113.473667: : 9/6/2020: gisel_15: 6 Sep 2020 ; Coordinate Uncertainty in Meters: 0.11000.

Caborca, Sonora: 30.741652, -112.171404: : 9/23/2018: Magdiel Yescas Reyna: 23 Sep 2018 ; Coordinate Uncertainty in Meters: 7.00000.

Hermosillo, Sonora: 28.903906, -112.052297: : 11/2/2018: diegoleon22: 2 Nov 2018 ; Coordinate Uncertainty in Meters: 8.00000.

Occurrence Remarks: male chuckwalla basking - Pinacate VC Sonora - 25 feb 2017; Coordinate Uncertainty in Meters: 502.00000.

Occurrence Remarks: Chuckwalla - Sauromalus ater - near Schuk Toak visitor centre - Pinacate Reserve - 27 feb 2016; Coordinate Uncertainty in Meters: 110.00000.

Caborca, Sonora: 30.27794, -112.317606: : 10/22/1999: Carlos G Velazco-Macias: 22 Oct 1999 ; Coordinate Uncertainty in Meters: 72.00000.

Puerto Penasco, Sonora: 31.553829, -113.47164: : 4/11/2021: Scott Shupe: 11 Apr 2021 ; Coordinate Uncertainty in Meters: 122.00000.

Caborca, Sonora: 30.336158, -112.340137: : 2/7/2001: Carlos G Velazco-Macias: 7 Feb 2001 ; Coordinate Uncertainty in Meters: 88.00000.

Puerto Penasco, Sonora: 31.554951, -113.473234: : 6/6/2016: Juan Carlos P├⌐rez Maga├▒a: 6 Jun 2016 ; Coordinate Uncertainty in Meters: 61.00000.

Puerto Penasco, Sonora: 31.554913, -113.473287: : 5/11/2024: Irma Cordova: 11 May 2024 ; Coordinate Uncertainty in Meters: 0.11000.

Puerto Penasco, Sonora: 31.556536, -113.471286: : 3/16/2024: Miguel Grageda: 16 Mar 2024 ; Coordinate Uncertainty in Meters: 0.11000.

Mexicali, Baja California: 31.068976, -114.971604: : 6/12/2025: Brian Simison: 12 Jun 2025 ; Coordinate Uncertainty in Meters: 15.00000.

Puerto Penasco, Sonora: 31.555975, -113.471642: : 5/17/2019: Ma. Loraine Matias-Palafox: 17 May 2019 ; Coordinate Uncertainty in Meters: 5.00000.

Caborca, Sonora: 30.757891, -112.176521: : 5/21/2019: Magdiel Yescas Reyna: 21 May 2019 ; Coordinate Uncertainty in Meters: 1395.00000.

Hermosillo, Sonora: 28.89732, -112.006062: : 5/18/2019: naturegirlkh: 18 May 2019 ; Coordinate Uncertainty in Meters: 1.11000.

Ensenada, Baja California: 29.410412, -114.402008: : 1/30/2016: Lily: 30 Jan 2016 ; Coordinate Uncertainty in Meters: 0.11000.

Caborca, Sonora: 30.705522, -112.252593: : 2/29/2020: valcamurrieta: 29 Feb 2020 ; Coordinate Uncertainty in Meters: 10239.00000.

Puerto Penasco, Sonora: 31.555289, -113.473011: : 3/26/2015: Ana Gatica Colima: 26 Mar 2015 ; Coordinate Uncertainty in Meters: 0.11000.

Puerto Penasco, Sonora: 31.55464, -113.470423: : 3/25/2014: Anne: 25 Mar 2014 ; Coordinate Uncertainty in Meters: 26.00000.

Puerto Penasco, Sonora: 31.291472, -113.496297: : 3/30/2021: Maybeth Pinto: 30 Mar 2021 ; Coordinate Uncertainty in Meters: 48.00000.

Puerto Penasco, Sonora: 31.555599, -113.468078: : 4/9/2021: Miguel Grageda: 9 Apr 2021 ; Coordinate Uncertainty in Meters: 94.00000.

Puerto Penasco, Sonora: 31.555828, -113.472533: : 2/11/2021: Ricardo Gonz├ílez: 11 Feb 2021 ; Coordinate Uncertainty in Meters: 15.00000.

Puerto Penasco, Sonora: 31.555332, -113.472348: : 2/11/2021: Ricardo Gonz├ílez: 11 Feb 2021 ; Coordinate Uncertainty in Meters: 8.00000.

Ensenada, Baja California: 29.765606, -114.760353: : 9/24/2013: Bradford Hollingsworth: 24 Sep 2013 :
Occurrence Remarks: Sauromalus ater; Coordinate Uncertainty in Meters: 0.11000.

Ensenada, Baja California: 29.774403, -114.766961: : 9/24/2013: Bradford Hollingsworth: 24 Sep 2013 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: dig; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: smartcapture; Coordinate Uncertainty in Meters: 0.11000.

Ensenada, Baja California: 29.783722, -114.774339: : 9/24/2013: Bradford Hollingsworth: 24 Sep 2013 ; Coordinate Uncertainty in Meters: 0.11000.

Ensenada, Baja California: 29.785822, -114.776764: : 9/24/2013: Bradford Hollingsworth: 24 Sep 2013 ; Coordinate Uncertainty in Meters: 0.11000.

Puerto Penasco, Sonora: 31.554645, -113.473105: : 9/15/2021: F. Gual-Suarez: 15 Sep 2021 ; Coordinate Uncertainty in Meters: 4.00000.

Ensenada, Baja California: 29.82432, -114.810955: : 5/18/2005: Ryan Sawby: 18 May 2005 ; Coordinate Uncertainty in Meters: 1045.00000.

Ensenada, Baja California: 29.737029, -114.727392: : 3/19/2017: Lily: 19 Mar 2017 ; Coordinate Uncertainty in Meters: 127.00000.

Occurrence Remarks: Common Chuckwalla (Sauromalus ater) on a trail near Catavina (to see the cave paintings). My favorite Common Chuckwalla (Sauromalus ater) Hatchling: https://www.inaturalist.org/observations/68029395 Adult in Baja California, Mexico: https://www.inaturalist.org/observations/108220643 Common Chuckwalla (Sauromalus ater) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Conservation Status: Sujeta a protecci├│n especial in Mexico. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html Size: 5 - 9 inches long from snout to vent (12.7 - 22.8 cm). It is the second largest lizard native to the United States. (The Gila Monster is larger). (Floridas Green Iguanas are not native to the state.) Appearance: it is a large, flat-bodied lizard with a large rounded belly, and a wide-based blunt-tipped tail. The neck and sides of the body are covered with loose folds of skin. Scales are small and granular. Tail will regenerate if detached. Males have enlarged femoral pores. Color and Pattern: Several color patterns occur. Color can be black, reddish, gray, brown, yellow, or tan. Color changes with age and varies with the color of the habitat. Some individuals have red torsos. The tail and sides are light gray or cream, sometimes reddish. Male / Female Differences: Males have dark, usually black, head, chest, and limbs, with red, black, or yellowish backs. Sometimes the dark coloring is covered with light spots and flecks. Females usually retain some of the juvenile body and tail banding. The body and tail of young chuckwallas are more prominently banded with dark and yellow coloring. Activity: Diurnal. Rock-dwelling, sheltering in rock crevices or under rocks. Rocks, especially large outcrops and boulder piles, are used for basking. Chuckwallas are often seen in the morning basking on a large rock pile. After basking, they leave the rocks to forage for food. Most active from spring through fall, remaining inactive in deep rock crevices during the cold of winter, but may be active all year in warmer areas. Also retreats into rock crevices during extreme heat. Defense: When disturbed, a chukwalla will retreat quickly into a rock crevice, inflating its body with air and using its strong claws and rough skin to tightly wedge itself into the crevice to make extraction difficult. Diet and Feeding: Eats a variety of plant leaves and flowers and fruit, including creosote bush flowers. Occasionally eats insects. Reproduction: Breeds from April to June. Females lay 5 -16 eggs from June to August. Females may only lay eggs every two or three years. Eggs hatch in late September. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html (includes great photos). Irenes Lizards (Sauria Suborder) observations on INaturalist, worldwide: Amphibians and Reptiles of California: (excellent photos and descriptions): https://californiaherps.com Reptiles and Amphibians of California: an INaturalist Project (261+ species): (mine: 40+ species): RASCals (Reptiles & Amphibians of Southern California): an INaturalist Project: https://www.inaturalist.org/projects/rascals Amphibians and Reptiles of the Anza-Borrego Desert Region: A Photographic Field Guide, L. Lee Grismer and Marta S. Grismer, 2024 (excellent photos and descriptions) Reptile Database (worldwide) https://reptile-database.reptarium.cz/ Desert Lizards, by James W. Cornett, 2006 (of the Southwest U.S. Desert) Animal Diversity Web (ADW) is an online database, an encyclopedia of animal natural history, distribution, classification, glossary, and conservation biology: https://animaldiversity.org/ Irenes (aparrot1) Profile Page on INaturalist listing Nature Resources (includes online references with links) for Plants, Birds, Fungi, Lepidoptera, Arachnids, Reptiles, Amphibians, Marine Life, Plant Galls, and more: https://www.inaturalist.org/people/3188668; Coordinate Uncertainty in Meters: 4.00000.

Puerto Penasco, Sonora: 31.554768, -113.473459: : 8/7/2015: Carolina Ni├▒o: 7 Aug 2015 ; Coordinate Uncertainty in Meters: 112.00000.

Unknown, Baja California: 29.752187, -114.743613: : 5/12/2026: Daniela Varela Zepeda: 12 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Mexicali, Baja California: 31.069445, -114.972533: : 5/5/2017: Jorge H. Valdez: 5 May 2017 ; Coordinate Uncertainty in Meters: 0.11000.

Unknown, Baja California: 29.752017, -114.742828: : 2/22/2026: jerryzy: 22 Feb 2026 ; Coordinate Uncertainty in Meters: 12.00000.

Unknown, Baja California: 29.331128, -114.307563: : 9/22/2025: Julien Ueda: 22 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Unknown, Baja California: 29.752022, -114.743622: : 2/5/2026: Sky Jacobs: 5 Feb 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Puerto Penasco, Sonora: 31.547536, -113.472469: : 9/2/2022: gisel_15: 2 Sep 2022 ; Coordinate Uncertainty in Meters: 547.00000.

Puerto Penasco, Sonora: 31.43103, -113.259127: : 9/25/2022: chubel77: 25 Sep 2022 ; Coordinate Uncertainty in Meters: 15.00000.

Hermosillo, Sonora: 29.0194, -112.289847: : 11/8/2025: Desert Max: 8 Nov 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Puerto Penasco, Sonora: 31.560942, -113.478602: : 11/10/2018: Dayhana Felix Berumen: 10 Nov 2018 ; Coordinate Uncertainty in Meters: 977.00000.

Puerto Penasco, Sonora: 31.563867, -113.473795: : 11/10/2018: Dayhana Felix Berumen: 10 Nov 2018 ; Coordinate Uncertainty in Meters: 977.00000.

Puerto Penasco, Sonora: 31.564439, -113.479895: : 11/10/2018: Dayhana Felix Berumen: 10 Nov 2018 ; Coordinate Uncertainty in Meters: 977.00000.

Occurrence Remarks: Male Chuckwalla - Pinacate VC Sonora; Coordinate Uncertainty in Meters: 112.00000.

Occurrence Remarks: Male chuckwalla feeding - Pinacate VC Sonora; Coordinate Uncertainty in Meters: 56.00000.

Mexicali, Baja California: 31.069928, -114.974967: : 6/29/2018: mstepek: 29 Jun 2018 ; Coordinate Uncertainty in Meters: 16.00000.

Ensenada, Baja California: 29.799593, -114.802881: : 4/23/2019: Margarita Barba: 23 Apr 2019 ; Coordinate Uncertainty in Meters: 1000.00000.

Ensenada, Baja California: 29.574033, -114.368789: : 5/25/2024: ├ülvaro San Jos├⌐ Elizundia: 25 May 2024 ; Coordinate Uncertainty in Meters: 10.00000.

Ensenada, Baja California: 29.735488, -114.726026: : 9/30/2022: Kurt Radamaker: 30 Sep 2022 ; Coordinate Uncertainty in Meters: 31.00000.

Ensenada, Baja California: 29.735861, -114.726455: : 9/30/2022: Kurt Radamaker: 30 Sep 2022 ; Coordinate Uncertainty in Meters: 31.00000.

Occurrence Remarks: Subida a las pinturas rupestres a un lado del sendero; Coordinate Uncertainty in Meters: 479.00000.

Ensenada, Baja California: 29.750889, -114.745167: : 3/2/2022: Melqu├¡ades: 2 Mar 2022 ; Coordinate Uncertainty in Meters: 29.00000.

Puerto Penasco, Sonora: 31.55602, -113.471712: : 3/24/2022: Miranda Keating: 24 Mar 2022 ; Coordinate Uncertainty in Meters: 3.00000.

Puerto Penasco, Sonora: 31.55532, -113.473237: : 4/26/2018: Jorge H. Valdez: 26 Apr 2018 ; Coordinate Uncertainty in Meters: 10.00000.

Occurrence Remarks: You can just barely make out the tail of a juvenile.; Coordinate Uncertainty in Meters: 4.00000.

San Luis Rio Colorado, Arizona: 32.228582, -114.003851: : 3/9/2024: Matthew Lachiusa: 9 Mar 2024 ; Coordinate Uncertainty in Meters: 29120.00000.

Puerto Penasco, Arizona: 32.065332, -113.458511: : 3/16/2024: Lese Majeste: 16 Mar 2024 ; Coordinate Uncertainty in Meters: 29146.00000.

San Luis Rio Colorado, Sonora: 32.026124, -114.234466: : 11/11/2018: Lourdes Canizales: 11 Nov 2018 ; Coordinate Uncertainty in Meters: 196.00000.

Puerto Penasco, Sonora: 31.573723, -113.467168: : 8/4/2012: HUMBERTO GONZALEZ VELIZ: 4 Aug 2012 ; Coordinate Uncertainty in Meters: 9967.00000.

Puerto Penasco, Sonora: 31.599013, -113.463046: : 5/23/2019: Xochitl Casta├▒o: 23 May 2019 ; Coordinate Uncertainty in Meters: 8253.00000.

San Luis Rio Colorado, Sonora: 32.026124, -114.234466: : 3/21/2018: Ivanna Tautimez: 21 Mar 2018 ; Coordinate Uncertainty in Meters: 196.00000.

Mexicali, Baja California: 32.621483, -115.710023: : 7/27/2019: alex_vchiu: 27 Jul 2019 ; Coordinate Uncertainty in Meters: 698.00000.

Occurrence Remarks: Scan from my slide photo. Mexico: Sonora: El Pinacate Lava Flow, west of Sierra Blanca. 19 Oct 1990.; Coordinate Uncertainty in Meters: 1002.00000.

San Luis Rio Colorado, Sonora: 32.026124, -114.234466: : 3/3/2017: Ken Lamberton: 3 Mar 2017 ; Coordinate Uncertainty in Meters: 196.00000.

San Luis Rio Colorado, Arizona: 32.251137, -114.157481: : 3/27/2017: seanharrington256: 27 Mar 2017 ; Coordinate Uncertainty in Meters: 29120.00000.

San Luis Rio Colorado, Arizona: 32.272767, -114.123577: : 3/22/2018: Joey Mugleston: 22 Mar 2018 ; Coordinate Uncertainty in Meters: 29120.00000.

San Luis Rio Colorado, Arizona: 32.208226, -114.119453: : 3/23/2017: Joey Mugleston: 23 Mar 2017 ; Coordinate Uncertainty in Meters: 29120.00000.

Puerto Penasco, Sonora: 31.773996, -113.446696: : 4/10/2021: Miguel Grageda: 10 Apr 2021 ; Coordinate Uncertainty in Meters: 152.00000.

San Luis Rio Colorado, Sonora: 32.026128, -114.234467: : 8/7/2021: Benjam├¡n Bustamante: 7 Aug 2021 ; Coordinate Uncertainty in Meters: 196.00000.

Tecate, Baja California: 32.49747, -115.899268: : 3/16/2022: Ricardo Rivera: 16 Mar 2022 ; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 3743225075;; Coordinate Uncertainty in Meters: 1080.00000.

GBIFID: 4120867411;; Coordinate Uncertainty in Meters: 10.00000.

Pima, Arizona: 32.242103, -111.168992: : 4/19/2026: scallahanb: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3712728278;; Coordinate Uncertainty in Meters: 7813.00000.

Pima, Arizona: 32.24207, -111.16897: : 4/15/2026: tombesser: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Pima, Arizona: 32.242633, -111.167577: : 5/9/2026: Mike Watson: 9 May 2026 ; Coordinate Uncertainty in Meters: 55.00000.

Occurrence Remarks: Caught by Tim Dayton; Coordinate Uncertainty in Meters: 29173.00000.

Pima, Arizona: 32.243059, -111.166445: : 9/12/2025: Jeff McIntyre: 12 Sep 2025 ; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 1092907890; Occurrence Remarks: Imperial County, California, US One of the 8 we found in the area.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1092907882; Occurrence Remarks: Imperial County, California, US One of the 8 we found in the area.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1092907885; Occurrence Remarks: Imperial County, California, US One of the 8 we found in the area.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1092907901; Occurrence Remarks: Imperial County, California, US One of 8 found in the area.;; Coordinate Uncertainty in Meters: 10.00000.

Mexicali, Baja California: 32.093997, -115.818212: : 5/27/2011: Andrew Gottscho: 27 May 2011 ; Coordinate Uncertainty in Meters: 29146.00000.

Maricopa, Arizona: 32.553943, -112.87133: : 4/5/2026: Vikki Jackson: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 443.00000.

GBIFID: 4431222662; Occurrence Remarks: Sleeping in rock crevice.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4597100761; Occurrence Remarks: Very large lizard;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4597544692; Occurrence Remarks: In a crevice between two rocks. It didnt want to come out.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 2242927980; Occurrence Remarks: Wild at the Arizona-Sonora Desert Museum;; Coordinate Uncertainty in Meters: 209.00000.

GBIFID: 5133164316; Occurrence Remarks: Juvenile Chuckwalla;; Coordinate Uncertainty in Meters: 29093.00000.

GBIFID: 891172549; Occurrence Remarks: On a windy and cooler-than-usual afternoon, this was the only chuckwalla we spotted.;; Coordinate Uncertainty in Meters: 154.00000.

GBIFID: 1272094091; Occurrence Remarks: Imperial County, California, US;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2576286012; Occurrence Remarks: Juvenile;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3031823173; Occurrence Remarks: Lizard about hand-length, with wide, flat body, and skinny black & orange striped tail. Very curious & unafraid. Climbing on a small bush and eating the green leaf-tips.;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 4936232702; Occurrence Remarks: In the Tinajas Altas Mountains. Not collected. GTS 1817.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 923926725; Occurrence Remarks: Found this juvenile chuckie in a rock crack while night walking, as soon as I tapped him he went deeper in crack so these are best pics I could get.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3320921863; Occurrence Remarks: Awesome;; Coordinate Uncertainty in Meters: 6321.00000.

General Plutarco Elias Calles, Sonora: 31.821136, -112.8624: : 3/13/2021: Alex Greenwood: 13 Mar 2021 ; Coordinate Uncertainty in Meters: 122.00000.

General Plutarco Elias Calles, Sonora: 31.866352, -113.376502: : 4/14/2008: David Bygott: 14 Apr 2008 :
Occurrence Remarks: A chuckwalla lizard, Pinacate, Mexico; Coordinate Uncertainty in Meters: 0.11000.

Mexicali, Baja California: 32.153158, -115.218756: : 6/28/2018: Sam Fellows: 28 Jun 2018 ; Coordinate Uncertainty in Meters: 29146.00000.

Mexicali, Baja California: 32.15425, -115.789322: : 6/29/2018: Melba: 29 Jun 2018 ; Coordinate Uncertainty in Meters: 196.00000.

Mexicali, Baja California: 32.16817, -115.77724: : 6/29/2018: Melba: 29 Jun 2018 ; Coordinate Uncertainty in Meters: 1.11000.

Puerto Penasco, Sonora: 31.744605, -113.306291: : 3/25/2015: Ana Gatica Colima: 25 Mar 2015 ; Coordinate Uncertainty in Meters: 0.11000.

Mexicali, Baja California: 32.64138, -115.698212: : 3/21/2021: Mario Horacio Mendoza L├│pez: 21 Mar 2021 ; Coordinate Uncertainty in Meters: 61.00000.

Mexicali, Baja California: 32.641453, -115.698116: : 3/21/2021: Mario Horacio Mendoza L├│pez: 21 Mar 2021 ; Coordinate Uncertainty in Meters: 4.00000.

Tecate, California: 32.616692, -116.103743: : 8/19/2017: Jake Scott: 19 Aug 2017 ; Coordinate Uncertainty in Meters: 29066.00000.

Mexicali, Baja California: 32.643291, -115.702945: : 4/7/2024: Leonardo Ponce: 7 Apr 2024 ; Coordinate Uncertainty in Meters: 271.00000.

Mexicali, Baja California: 32.574578, -115.703497: : 7/1/2024: Karla Zapata Carre├▒o: 1 Jul 2024 ; Coordinate Uncertainty in Meters: 4.00000.

General Plutarco Elias Calles, Sonora: 31.89024, -113.367308: : 4/6/2018: biolcait: 6 Apr 2018 ; Coordinate Uncertainty in Meters: 31.00000.

Occurrence Remarks: Between two boulders in eroded granite outcrop.; Coordinate Uncertainty in Meters: 29066.00000.

San Diego, California: 33.117853, -116.454097: : 4/23/2026: Ezra Patricelli: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 5875.00000.

San Diego, California: 33.12272, -116.440167: : 4/23/2026: Ezra Patricelli: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 2307.00000.

San Diego, California: 33.146436, -116.352123: : 4/26/2026: Jules: 26 Apr 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Imperial, California: 32.700677, -116.007251: : 4/4/2026: Laine McTague: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 29066.00000.

Pinal, Arizona: 33.179536, -111.653225: : 2/11/2026: Hope Abercrombie: 11 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Imperial, California: 32.67808, -116.09873: : 5/11/2025: Floyd E. Hayes: 11 May 2025 ; Coordinate Uncertainty in Meters: 1.11000.

San Diego, California: 32.861509, -116.224372: : 2/26/2026: Suzy Cooper: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Diego, California: 32.861481, -116.224349: : 2/26/2026: macrumley: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: Picacho Mountains; Coordinate Uncertainty in Meters: 0.11000.

Yuma, Arizona: 32.932547, -113.375189: : 2/28/2026: Vikki Jackson: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 196.00000.

Imperial, California: 32.788359, -116.058865: : 2/28/2026: Nathan: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 29066.00000.

Imperial, California: 32.678059, -116.084593: : 3/4/2026: uzun: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 1273.00000.

San Diego, California: 33.088448, -116.560615: : 3/8/2026: mrwalkway: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 29012.00000.

San Diego, California: 33.136454, -116.418033: : 3/8/2026: mrwalkway: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 29012.00000.

San Diego, California: 33.143264, -116.360464: : 4/28/2026: i-am-tommy: 28 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Imperial, California: 32.849945, -114.631149: : 1/25/2026: Angie Jo: 25 Jan 2026 ; Coordinate Uncertainty in Meters: 7765.00000.

Imperial, California: 32.676867, -116.084829: : 2/3/2026: uzun: 3 Feb 2026 ; Coordinate Uncertainty in Meters: 4709.00000.

San Diego, California: 32.959445, -116.237875: : 4/1/2026: Matt Gruen: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 29039.00000.

San Diego, California: 32.816888, -116.392897: : 4/1/2026: Matt Gruen: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 29039.00000.

San Diego, California: 33.017975, -116.388657: : 3/14/2026: snelson182: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 205.00000.

San Diego, California: 33.034931, -116.398262: : 3/16/2026: Garrett Craig: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: :); Coordinate Uncertainty in Meters: 79.00000.

Occurrence Remarks: Ran under before I got a good picture, but it stuck its head out to watch for a while. Looked about 1.5 feet long.; Coordinate Uncertainty in Meters: 64.00000.

San Diego, California: 33.016785, -116.45158: : 10/5/2025: Chloe and Trevor Van Loon: 5 Oct 2025 ; Coordinate Uncertainty in Meters: 4.00000.

San Diego, California: 33.210561, -116.435665: : 3/22/2026: Bill Hubick: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 155.00000.

San Diego, California: 32.858382, -116.22744: : 2/20/2022: Chloe and Trevor Van Loon: 20 Feb 2022 :

GBIFID: 1841205339; Occurrence Remarks: Young colorful Chuckwalla;; Coordinate Uncertainty in Meters: 61.00000.

GBIFID: 3881653455; Occurrence Remarks: Hes in the crevice!;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3994317271; Occurrence Remarks: Near the Colorado River, CA.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1092900443; Occurrence Remarks: Chuckwalla at the wind caves on spring break camping trip;; Coordinate Uncertainty in Meters: 50.00000.

GBIFID: 4116383860; Occurrence Remarks: This lizard was found in Arizona. It was broad and had textured skin.;; Coordinate Uncertainty in Meters: 33718.00000.

GBIFID: 4453948697; Occurrence Remarks: Castle Dome approach;; Coordinate Uncertainty in Meters: 417.00000.

GBIFID: 1914325012; Occurrence Remarks: Imperial County, California, US;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4596964963; Occurrence Remarks: Photo later;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 4599804696; Occurrence Remarks: Same location as March 11 observation (possibly same individual).;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4606724223; Occurrence Remarks: More pictures to be added later;; Coordinate Uncertainty in Meters: 7.00000.

GBIFID: 4853056319; Occurrence Remarks: Collected and released during a flood of Painted Rock Reservoir.;; Coordinate Uncertainty in Meters: 977.00000.

GBIFID: 2251910514; Occurrence Remarks: You gotta love that a Chuckwalla is sitting next to a petroglyph of a chuckwalla!;; Coordinate Uncertainty in Meters: 1.00000.

GBIFID: 2265809357; Occurrence Remarks: 2 Photos;; Coordinate Uncertainty in Meters: 1052.00000.

GBIFID: 1322995612; Occurrence Remarks: -;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5206143650; Occurrence Remarks: I spotted this lizard sunbathing on a rock in Telegraph Pass near Yuma, Arizona. It didnÆt move when I got close, and it blended in really well with the rocks. I learned that chuckwallas like hot, rocky areas where they can hide in cracks to stay safe. They flatten their bodies to fit into tight spaces when they feel threatened. They mostly eat plants and are usually active during the hottest parts of the day.;; Coordinate Uncertainty in Meters: 16244.00000.

GBIFID: 2423179597; Occurrence Remarks: Played dead until all eyes averted, then dashed away.;; Coordinate Uncertainty in Meters: 29012.00000.

San Diego, California: 33.18245, -116.213547: : 2/25/2020: Larry Hendrickson, California State Parks: 25 Feb 2020 :

GBIFID: 2580118205; Occurrence Remarks: Near trailhead for Muggins Mountain Peak Trail.;; Coordinate Uncertainty in Meters: 282.00000.

GBIFID: 2619954000; Occurrence Remarks: Banded rock, chuckwalla, leaf-toed gecko, granite night, shovelnose, speckled rattler, red diamond rattler seen in the canyon. No white whale though. More trip details can be read here: Coordinate Uncertainty in Meters: 29066.00000.

GBIFID: 2641583348; Occurrence Remarks: This chuckwalla walked right up to me. It let me take a few photos before running away after hearing me move my foot.;; Coordinate Uncertainty in Meters: 39.00000.

GBIFID: 891043375; Occurrence Remarks: We saw a few Chuckwallas as we drove along the rocks on the dirt road, but only got this one pic.;; Coordinate Uncertainty in Meters: 155.00000.

GBIFID: 1453504656; Occurrence Remarks: San Diego County, California, US;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1453535067; Occurrence Remarks: this was a large lizard over 6 inches in body length (excluding tail).;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1455583707; Occurrence Remarks: Seen from a pullout on the side of the freeway. A few others were also spotted in the rocks;; Coordinate Uncertainty in Meters: 244.00000.

GBIFID: 2851199161; Occurrence Remarks: Sleeping in crevice;; Coordinate Uncertainty in Meters: 25.00000.

GBIFID: 899948357; Occurrence Remarks: As I drove along the rocky areas of S2 I finally saw a few chuckwallas sunning but couldnt get any good pics on my phone other then these pics of one in a crack. I will post other pics from my camera later. Temps were in low to mid 80s but dropped to mid 70s when I got to Blair Valley. Also saw one banded rock lizard but couldnt get a pic. Not a bad first trip to the desert for early march.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 1562906263; Occurrence Remarks: Glorietta Canyon;; Coordinate Uncertainty in Meters: 444.00000.

GBIFID: 899965551; Occurrence Remarks: We always see a few chuckwallas in the shell canyon area but they were more skiddish then usual so this is the only pic I was able to get. We did see 4 here.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 899965511; Occurrence Remarks: We drove into Anza Borrego in hopes of seeing more lizards and sure enough on the rocks we saw a few more chuckwallas including this one outside of the park boundary that I was able to fish out of the crack for close up pics. We did not see any collared lizards as I had hoped but still have very productive day with well over 50 lizards including the best find the leopard lizard.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3044910951; Occurrence Remarks: Juvenile;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 911504537; Occurrence Remarks: With Travis Reeder;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 3097278217; Occurrence Remarks: A pair, second lizard is barely visible behind head;; Coordinate Uncertainty in Meters: 10.00000.

San Diego, California: 33.056097, -116.536955: : 3/12/2026: Neal Kelso: 12 Mar 2026 ; Coordinate Uncertainty in Meters: 29012.00000.

Occurrence Remarks:; Coordinate Uncertainty in Meters: 67.00000.

San Diego, California: 33.272728, -116.423881: : 10/27/2025: Jamie Simmons: 27 Oct 2025 ; Coordinate Uncertainty in Meters: 5.00000.

San Diego, California: 33.273534, -116.425698: : 4/23/2026: Ezra Patricelli: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 297.00000.

San Diego, California: 33.271725, -116.418543: : 5/6/2026: Jeffrey W Tanner: 6 May 2026 ; Coordinate Uncertainty in Meters: 209.00000.

Occurrence Remarks: SAN DIEGO, UNITED STATES - APRIL 28 - MAY 09 : San Diego - Tucson - Patagonia - Phoenix ( Photo by Xavier Piron ); Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.34273, -112.04225: : 4/2/2026: manu-klein: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 77.00000.

Maricopa, Arizona: 33.342338, -112.036221: : 4/3/2026: manu-klein: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 237.00000.

Maricopa, Arizona: 33.361775, -112.026853: : 4/5/2026: manu-klein: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 327.00000.

San Diego, California: 33.27395, -116.649261: : 4/3/2026: Rachel S: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 8572.00000.

San Diego, California: 33.275736, -116.425008: : 4/5/2026: Adriel Hampton: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.36254, -111.987989: : 4/18/2026: Peter Wilson: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 21.00000.

Maricopa, Arizona: 33.378349, -111.877013: : 4/21/2026: Rande Gallant: 21 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.264708, -112.024894: : 4/21/2026: Rande Gallant: 21 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.229123, -112.02627: : 4/21/2026: Rande Gallant: 21 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

Pinal, Arizona: 33.390178, -111.4234: : 11/9/2025: Gianna Leippert: 9 Nov 2025 ; Coordinate Uncertainty in Meters: 142.00000.

San Diego, California: 33.272842, -116.427025: : 4/18/2026: Zooey Sandel: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.328874, -112.072695: : 5/5/2026: Danielle Carlock: 5 May 2026 ; Coordinate Uncertainty in Meters: 22.00000.

San Diego, California: 33.272904, -116.423865: : 5/22/2026: Max Roberts: 22 May 2026 ; Coordinate Uncertainty in Meters: 12.00000.

Occurrence Remarks: Male and female; Coordinate Uncertainty in Meters: 8.00000.

Occurrence Remarks: Probably the dumbest male chuckwalla of all time, this individual fled under a bush instead of a crevice and allow a close approach. I was able to hand catch it without a lasso. Otherwise a healthy individual.; Coordinate Uncertainty in Meters: 15.00000.

Occurrence Remarks: Had many sand flies on its head.; Coordinate Uncertainty in Meters: 8.00000.

San Diego, California: 33.279733, -116.432991: : 5/22/2026: Max Roberts: 22 May 2026 ; Coordinate Uncertainty in Meters: 15.00000.

Maricopa, Arizona: 33.303505, -112.021614: : 5/28/2026: Emily Jaye: 28 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Maricopa, Arizona: 33.361825, -112.027078: : 4/5/2026: theurbannatureguy: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Maricopa, Arizona: 33.345013, -112.058411: : 5/20/2018: Sendy Hernßndez Orellana Barrows: 20 May 2018 :

San Diego, California: 33.278156, -116.568333: : 4/6/2025: Alexander Gregory Mason: 6 Apr 2025 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.363667, -112.030949: : 3/1/2026: Della Killeen: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 2169.00000.

Maricopa, Arizona: 33.360242, -112.004683: : 3/7/2026: Emma J Rubin: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Maricopa, Arizona: 33.363517, -112.029067: : 3/8/2026: theslowloris: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 63.00000.

Maricopa, Arizona: 33.364574, -112.029998: : 3/8/2026: theslowloris: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 72.00000.

Maricopa, Arizona: 33.420088, -112.58714: : 3/11/2026: Yinpeng Zhang: 11 Mar 2026 ; Coordinate Uncertainty in Meters: 28957.00000.

Maricopa, Arizona: 33.392731, -112.047363: : 3/14/2026: margontour: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 9366.00000.

La Paz, Arizona: 33.249267, -114.358658: : 9/23/2025: Madison Lutes: 23 Sep 2025 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.360455, -112.004158: : 4/27/2026: jphett: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 16.00000.

Maricopa, Arizona: 33.36267, -111.988021: : 4/18/2026: Hattie Odell: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 1.00000.

Maricopa, Arizona: 33.455563, -111.9459: : 4/15/2026: belyykit: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.45583, -111.946236: : 4/15/2026: belyykit: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Maricopa, Arizona: 33.360753, -111.894794: : 4/28/2026: John G. Phillips: 28 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.29799, -111.818898: : 4/28/2026: John G. Phillips: 28 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

Pinal, Arizona: 33.408213, -111.419953: : 5/3/2026: kaceyblue: 3 May 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Maricopa, Arizona: 33.362617, -111.987267: : 5/11/2026: Lucas Pittman: 11 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Maricopa, Arizona: 33.36255, -111.986763: : 5/11/2026: Lucas Pittman: 11 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.35715, -112.021453: : 1/13/2026: tjanefaber: 13 Jan 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Pinal, Arizona: 33.408405, -111.419717: : 1/20/2026: Bryan Anderson: 20 Jan 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Diego, California: 33.272271, -116.42186: : 4/23/2026: Kass: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 861.00000.

San Diego, California: 33.241112, -116.389164: : 9/16/2025: srood: 16 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Occurrence Remarks: 690masl male; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.46867, -111.609362: : 9/20/2025: Linda Arandas: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 6.00000.

Yuma, Arizona: 33.22568, -114.244038: : 9/24/2025: Jorge Aguilera: 24 Sep 2025 ; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.351662, -112.020103: : 5/10/2026: hoppersci: 10 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.438291, -111.639491: : 5/14/2026: Jason: 14 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Pinal, Arizona: 33.442405, -111.46118: : 5/17/2026: boosterberry: 17 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Occurrence Remarks: Fresh feces; Coordinate Uncertainty in Meters: 61.00000.

Occurrence Remarks: Several different individuals, all same general area + time.; Coordinate Uncertainty in Meters: 0.11000.

San Diego, California: 33.240447, -116.389962: : 3/28/2026: andriajane: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.456187, -111.944593: : 3/29/2026: Leyton Reid: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.362079, -111.988235: : 3/29/2026: Nate Peterson: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 174.00000.

Maricopa, Arizona: 33.363536, -111.986824: : 4/5/2026: Mike Ostrowski: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 18.00000.

Maricopa, Arizona: 33.363469, -111.986791: : 4/5/2026: Mike Ostrowski: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.361319, -112.00478: : 4/7/2026: Bernsy: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 264.00000.

Maricopa, Arizona: 33.450675, -112.059529: : 3/29/2026: moiforte: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

San Diego, California: 33.271839, -116.424267: : 4/5/2026: mattytut7: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 62.00000.

Occurrence Remarks: Two males fighting. We watched them for around 25 minutes as they kept biting and thrashing each other, taking breaks in between. They also made each other roll down the hill bit by bit. Eventually, they rolled down next to us and they both ran away to different crevices.; Coordinate Uncertainty in Meters: 28984.00000.

Maricopa, Arizona: 33.326084, -111.833877: : 4/11/2026: Max Roberts: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 28984.00000.

San Diego, California: 33.365203, -116.415878: : 3/27/2026: mreen: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Pinal, Arizona: 33.408222, -111.419655: : 10/1/2025: Alex Gaouette: 1 Oct 2025 ; Coordinate Uncertainty in Meters: 8.00000.

San Diego, California: 33.272598, -116.423697: : 4/23/2026: Kass: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 182.00000.

GBIFID: 1838012495; Occurrence Remarks: About 10 of them.;; Coordinate Uncertainty in Meters: 1032.00000.

GBIFID: 3773019588; Occurrence Remarks: CNC 2022;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1847462904; Occurrence Remarks: Mature male carrot-tail;; Coordinate Uncertainty in Meters: 200.00000.

GBIFID: 3902393809; Occurrence Remarks: Only saw the tail but didnÆt wish to disturb it any further. It could possibly be a snake but personally didnÆt think so.;; Coordinate Uncertainty in Meters: 9.00000.

GBIFID: 3903059014; Occurrence Remarks: On rock;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3903296493; Occurrence Remarks: Absolutely beautiful fella! Getting a last little bit of sun in before night;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4034618105; Occurrence Remarks: living wild and free in zoo grounds;; Coordinate Uncertainty in Meters: 330.00000.

GBIFID: 1890720883; Occurrence Remarks: Male and female on a road cut;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1890720938; Occurrence Remarks: Eating leaves in this tree;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1098897195; Occurrence Remarks: Chuckwalla (carrott-tailed variety) sunning on rocks in South Mountain Park, Phoenix, AZ;; Coordinate Uncertainty in Meters: 113702.00000.

GBIFID: 4091927507; Occurrence Remarks: Approximately foot long, likely a juvenile. Surprisingly adjusted to the presence of people.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4112221155; Occurrence Remarks: Chuckwalla, juvenile;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4116052084; Occurrence Remarks: Two Chuckwallas;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4121299500; Occurrence Remarks: has a red tail, not able to capture since hes hiding in the rock;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4127103916; Occurrence Remarks: Spotted this beauty during a hike in South Mountain Preserve. Pretty large lizard. Very black lizard with a very orange, thick tail. The coloration was distinct and quite vibrant. My understanding is that this is a Carrot-Tailed Chuckwalla, but I cannot find the complete scientific taxonomy for this type. It is reported that the South Mountain Preserve is the only habitat of this gorgeous lizard, so this definitely adds to the thrill of personally observing this species in the wild!;; Coordinate Uncertainty in Meters: 2265.00000.

GBIFID: 4413634961; Occurrence Remarks: South mountain chuckwalla.;; Coordinate Uncertainty in Meters: 117.00000.

GBIFID: 4430598780; Occurrence Remarks: Wedged tightly in there;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4596844236; Occurrence Remarks: Third chuckwalla seen in just a handful of hikes up Mormon;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4600072803; Occurrence Remarks: Hiding under a rock; reclusive.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4607482829; Occurrence Remarks: ôCarrot tailö variant, only found at South Mountain Park near Phoenix;; Coordinate Uncertainty in Meters: 51.00000.

GBIFID: 4847160063; Occurrence Remarks: South mountain carrot tail;; Coordinate Uncertainty in Meters: 302.00000.

GBIFID: 4847160603; Occurrence Remarks: Photo taken by CN;; Coordinate Uncertainty in Meters: 54261.00000.

GBIFID: 4847237853; Occurrence Remarks: Photo taken by CN;; Coordinate Uncertainty in Meters: 54261.00000.

GBIFID: 1144284321; Occurrence Remarks: Seen around midday. Apparently female - dark tail. Briefly observed entire lizard but could not obtain photograph.;; Coordinate Uncertainty in Meters: 195.00000.

GBIFID: 4852746753; Occurrence Remarks: Dude was huge. Maybe a foot long or so;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4854914592; Occurrence Remarks: Second photo for scale.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4872650213; Occurrence Remarks: Seemed to be hiding from the much larger chuckwalla in https://www.inaturalist.org/observations/218815515. He went unnoticed in his crevice.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 4872333738; Occurrence Remarks: This guy started off way on the top of the cliff then came barrelling down to ground level to chase away a juvenile chuckwalla I hadnt even noticed. He spent probably the next 15 minutes patrolling the lower level head-bobbing. https://youtu.be/dS0VFXZgwt8;; Coordinate Uncertainty in Meters: 30.00000.

GBIFID: 4872131191; Occurrence Remarks: Might be the same shy chuckwalla I saw on the way up in https://www.inaturalist.org/observations/218815509.;; Coordinate Uncertainty in Meters: 20.00000.

San Diego, California: 33.271658, -116.419872: : 6/1/2024: Alexander Gregory Mason: 1 Jun 2024 :

GBIFID: 4891784020; Occurrence Remarks: A chuckwalla walking in a crevice. Brightened the last picture for a better look at that cute face;; Coordinate Uncertainty in Meters: 1063.00000.

GBIFID: 2236265227; Occurrence Remarks: Sauromalus ater 07 Apr 2019 CA, SD Co., Anza-Borrego Desert SP, Borrego Palm Canyon;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2236265696; Occurrence Remarks: Sauromalus ater 07 Apr 2019 CA, SD Co., Anza-Borrego Desert SP, Borrego Palm Canyon;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2236841445; Occurrence Remarks: Even from 100 m away it had an eye on me.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 891137456; Occurrence Remarks: Biggest lizard Ive ever seen in real life!;; Coordinate Uncertainty in Meters: 1016.00000.

San Diego, California: 33.270663, -116.423112: : 4/7/2019: Raphaela E. Floreani Buzbee: 7 Apr 2019 :

GBIFID: 4926148225; Occurrence Remarks: Hiked with @birdnerd10; duplicate of one of his observations;; Coordinate Uncertainty in Meters: 28984.00000.

GBIFID: 2265791580; Occurrence Remarks: Spotted 2 chuckwalla on Palm Canyon trail grazing;; Coordinate Uncertainty in Meters: 40.00000.

GBIFID: 4952819239; Occurrence Remarks: location close but not exact;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4952454653; Occurrence Remarks: location close but not exact;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 5062979558; Occurrence Remarks: 2;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5062950554; Occurrence Remarks: 1;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5104575273; Occurrence Remarks: Not sure of the exact subspecie.;; Coordinate Uncertainty in Meters: 79.00000.

GBIFID: 5108314598; Occurrence Remarks: not moving at all but still alive;; Coordinate Uncertainty in Meters: 24.00000.

GBIFID: 1257413998; Occurrence Remarks: Hatchling along with older female (mother?) in same burrow;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5154090276; Occurrence Remarks: minor face injury but seemed okay;; Coordinate Uncertainty in Meters: 332.00000.

GBIFID: 5166994114; Occurrence Remarks: Male and female sharing a crack.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 5167156257; Occurrence Remarks: I was surprised to see this relatively normal-looking chuckwalla on this hill alongside the carrot-tailed morphs. Does anyone know the history of chuckwallas on this hill? Did they get here naturally or did people introduce them, leading to a mix of forms?;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 2445121768; Occurrence Remarks: Wedged in a rock - predator avoidance?;; Coordinate Uncertainty in Meters: 9.00000.

GBIFID: 2573980132; Occurrence Remarks: Sauromalus. Large lizards with short, stocky legs.;; Coordinate Uncertainty in Meters: 11091.00000.

San Diego, California: 33.380874, -116.444101: : 2/7/2020: Fred Melgert / Carla Hoegen: 7 Feb 2020 :

GBIFID: 2573942848; Occurrence Remarks: I didnt even realize I had photographed this chuck. I was going through my scenery pictures, and there it was.;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 4935969186; Occurrence Remarks: Anza Borrego State Park;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 1305170277; Occurrence Remarks: Juvenile standing proud in the middle of Montezuma grade at 10:30 pm;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 4935788161; Occurrence Remarks: Anza Borrego State Park Cool to see this pair of chuckwallas getting ready for the breeding season;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 2580101651; Occurrence Remarks: Found his black towel on the trail and lifted it carefully;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2620013917; Occurrence Remarks: Great day for chucks with six seen on the hike. More details of our trip in the desert can be read here: Coordinate Uncertainty in Meters: 28984.00000.

GBIFID: 2814374635; Occurrence Remarks: Out for a Sunset hike and came along this guy bathing in the sun. Touched up the photos lighting ever so slightly to help it stand out. Friends from Nevada weÆre scared half to death thinking it was a Gila Monster. ???? not gonna lie. I played along for a while!;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 2814169588; Occurrence Remarks: Observed April 2nd, 2018. If zoomed in, it appears the chuckwalla may be gravid or ate a lot recently, kinda bulges on the sides - visible in second photo.;; Coordinate Uncertainty in Meters: 41.00000.

GBIFID: 910491974; Occurrence Remarks: This was the first chuckwalla seen this day, Jenna saw it run into a hole at base of rock and we thought it got away, but then Colin found it in a crack so we were able to fish it out for pics. One of the prettiest babys Ive seen, especially after it warmed up and absorbed some UV, nice orange and black colors. Wonder if it will become a carrot tail male known for South Mountain.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 910491971; Occurrence Remarks: 2nd one seen by Jenna and caught for pics. Nice sub adult. Also pictured with one of the babys we found.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 891046774; Occurrence Remarks: 2nd baby found and 3rd overall out of 5 babies and 7 total chuckies. Took plenty of pics including with the kids and with the other 2 we caught.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 2851046667; Occurrence Remarks: Sleeping in crevice;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 3059164222; Occurrence Remarks: Juvenile. Found about 100 feet up on a rock climb;; Coordinate Uncertainty in Meters: 4160.00000.

GBIFID: 3097273572; Occurrence Remarks: Patio surrounded by blooming creosote and brittlebush, against hill with large boulders. No fencing.;; Coordinate Uncertainty in Meters: 28984.00000.

GBIFID: 1621778192; Occurrence Remarks: Female chuckwalla found along the National Trail in South Mountain.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3112419438; Occurrence Remarks: Borrego Palm Canyon. More detailed DSLR telephoto images will be uploaded later.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1024206901; Occurrence Remarks: South mountain Chuckwallas were a little like Bigfoot for me- I could never get a focused shot. Here is a maxed out, out of focus shot of a male with his characteristic orange tail.;; Coordinate Uncertainty in Meters: 11091.00000.

GBIFID: 3344036619; Occurrence Remarks: Dark front, lighter tail - ran into this crack and didnt come out although we waited almost a half hour.;; Coordinate Uncertainty in Meters: 1811.00000.

GBIFID: 1802784795; Occurrence Remarks: Carrot Tail;; Coordinate Uncertainty in Meters: 196.00000.

Maricopa, Arizona: 33.317608, -112.066505: : 8/16/2025: estherhikesaz: 16 Aug 2025 ; Coordinate Uncertainty in Meters: 5.00000.

San Diego, California: 33.278692, -116.430162: : 10/6/2025: Erik Atwell: 6 Oct 2025 ; Coordinate Uncertainty in Meters: 13.00000.

Maricopa, Arizona: 33.342617, -112.038286: : 9/4/2025: brandonlat: 4 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.427469, -111.937046: : 9/15/2025: Derek den Ouden: 15 Sep 2025 ; Coordinate Uncertainty in Meters: 1.00000.

Maricopa, Arizona: 33.514697, -111.961687: : 3/14/2026: kalebjudd: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1839252038; Occurrence Remarks: female sitting on the rocks next to the pond;; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.601564, -111.810732: : 10/27/2025: Russell Parsons: 27 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.510463, -111.950325: : 10/30/2025: jphett: 30 Oct 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.514473, -111.961099: : 10/25/2025: nikolaigrabowski1: 25 Oct 2025 ; Coordinate Uncertainty in Meters: 49.00000.

Maricopa, Arizona: 33.513595, -112.510413: : 3/27/2026: jellyfish_friend: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Riverside, California: 33.674075, -116.426437: : 4/3/2026: Jan Thompson: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.5145, -111.961358: : 3/3/2024: bharmer25: 3 Mar 2024 ; Coordinate Uncertainty in Meters: 29.00000.

Riverside, California: 33.665017, -116.397597: : 4/14/2026: Sue Shigenaga: 14 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.607167, -111.779045: : 5/26/2025: piercegardner: 26 May 2025 ; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 3859675507; Occurrence Remarks: My lifer Chuckwalla. One of many that @tothemax and I found that day.;; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.674107, -116.426673: : 4/3/2026: quandary: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.671437, -116.414768: : 5/29/2026: James Maughn: 29 May 2026 ; Coordinate Uncertainty in Meters: 15.00000.

Riverside, California: 33.637222, -115.991958: : 5/25/2026: Matthew Bokach: 25 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.537568, -112.02168: : 3/31/2026: manu-klein: 31 Mar 2026 ; Coordinate Uncertainty in Meters: 33.00000.

Maricopa, Arizona: 33.537313, -112.021722: : 3/31/2026: manu-klein: 31 Mar 2026 ; Coordinate Uncertainty in Meters: 22.00000.

Maricopa, Arizona: 33.513873, -112.512369: : 4/16/2026: Tim Salo: 16 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.600355, -111.811872: : 10/27/2025: Russell Parsons: 27 Oct 2025 ; Coordinate Uncertainty in Meters: 178.00000.

Maricopa, Arizona: 33.545775, -112.021705: : 11/1/2025: reidba: 1 Nov 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.55727, -112.028243: : 11/8/2025: stephanie_k: 8 Nov 2025 ; Coordinate Uncertainty in Meters: 449.00000.

Maricopa, Arizona: 33.546142, -112.021214: : 11/8/2025: Steven Wheeler: 8 Nov 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.671027, -116.414032: : 5/15/2026: artfox14: 15 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.684405, -116.364875: : 5/16/2026: mc_california: 16 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Maricopa, Arizona: 33.483511, -111.673838: : 5/15/2026: torinorth: 15 May 2026 ; Coordinate Uncertainty in Meters: 17.00000.

Riverside, California: 33.666555, -116.399897: : 5/25/2026: loraxspotting: 25 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.666528, -116.396038: : 5/25/2026: loraxspotting: 25 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1088931215; Occurrence Remarks: Approximately 12-16 head to tail;; Coordinate Uncertainty in Meters: 44028.00000.

Maricopa, Arizona: 33.585555, -112.514078: : 3/15/2026: abostic5: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Maricopa, Arizona: 33.519813, -111.971595: : 5/17/2025: Emmalee: 17 May 2025 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.624085, -116.348043: : 2/9/2026: Cameron W Barrows: 9 Feb 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.542187, -112.006697: : 2/12/2026: Emmalee: 12 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.639167, -115.988633: : 2/13/2026: mcitrin: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.639195, -115.98861: : 2/13/2026: Cameron W Barrows: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.684155, -116.364905: : 2/7/2026: Chris Tracy: 7 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.639161, -115.988656: : 2/13/2026: Rochelle Watson: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.639118, -115.988632: : 2/13/2026: quandary: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.639465, -115.988663: : 2/13/2026: quandary: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.541627, -112.024373: : 2/14/2026: Emmarie Marino: 14 Feb 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.639163, -115.98867: : 2/13/2026: Jan Thompson: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.639203, -115.988647: : 2/13/2026: jdogstevens: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.515992, -111.964308: : 2/26/2026: Bryan Anderson: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Maricopa, Arizona: 33.513439, -112.514599: : 2/28/2026: Rozetta Locksa: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.4762, -111.59703: : 3/1/2026: Emily Cowles: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.516705, -111.965217: : 3/1/2026: patmasphere: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.620239, -116.268003: : 2/27/2026: Diana: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.514962, -111.963195: : 3/4/2026: chellegreer: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 11.00000.

Maricopa, Arizona: 33.517649, -111.967943: : 3/7/2026: buntch: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 75.00000.

Maricopa, Arizona: 33.52027, -111.972522: : 3/7/2026: buntch: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 376.00000.

Riverside, California: 33.68407, -116.364853: : 3/10/2026: Chris Tracy: 10 Mar 2026 ; Coordinate Uncertainty in Meters: 15.00000.

Occurrence Remarks: Screenshot; Coordinate Uncertainty in Meters: 500000.00000.

Maricopa, Arizona: 33.527157, -112.573842: : 3/13/2026: Yinpeng Zhang: 13 Mar 2026 ; Coordinate Uncertainty in Meters: 28957.00000.

Riverside, California: 33.67406, -116.426292: : 4/3/2026: quandary: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 33.674686, -116.425931: : 4/3/2026: Cameron W Barrows: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.67471, -116.425566: : 4/3/2026: Cameron W Barrows: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.535745, -112.011681: : 10/10/2025: colelw: 10 Oct 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.674828, -116.4264: : 4/27/2026: Erik Atwell: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.671604, -116.414887: : 4/27/2026: Erik Atwell: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 38.00000.

Maricopa, Arizona: 33.516628, -111.964997: : 4/24/2026: jannaschofield: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.625653, -115.324242: : 4/30/2026: desertjules: 30 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.667578, -116.364233: : 5/3/2026: Caleb Eubanks: 3 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.625687, -115.324188: : 4/30/2026: Jan Thompson: 30 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.5144, -111.961412: : 12/9/2025: ginanorte: 9 Dec 2025 ; Coordinate Uncertainty in Meters: 2.00000.

Maricopa, Arizona: 33.54623, -112.02118: : 11/28/2025: esoncrant: 28 Nov 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.514388, -111.961355: : 1/4/2026: jclogan: 4 Jan 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.514497, -111.961472: : 1/4/2026: Isabella Lin: 4 Jan 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 33.643812, -116.318153: : 1/13/2026: lightlysaltedfries: 13 Jan 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.667053, -116.40097: : 1/19/2026: Jan Thompson: 19 Jan 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Maricopa, Arizona: 33.5168, -111.966195: : 2/1/2026: patgaetz: 1 Feb 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.515059, -111.961913: : 2/6/2026: gdonaher: 6 Feb 2026 ; Coordinate Uncertainty in Meters: 707.00000.

Maricopa, Arizona: 33.535862, -112.011841: : 4/11/2026: burkhardtk: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.586097, -112.513296: : 9/20/2025: Dallas Wiltz: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Occurrence Remarks: Female; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.574989, -112.523236: : 9/27/2025: pmstangelo: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 4172.00000.

Maricopa, Arizona: 33.519947, -111.971503: : 4/25/2026: Haoning Gong: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Riverside, California: 33.666714, -116.400468: : 3/16/2026: Chris Evers: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.6652, -116.396745: : 3/17/2026: Sue Shigenaga: 17 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Chuckwalla; Coordinate Uncertainty in Meters: 15.00000.

Maricopa, Arizona: 33.586032, -112.510289: : 3/21/2026: Dallas Wiltz: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 17.00000.

Maricopa, Arizona: 33.488106, -112.559654: : 3/27/2026: billrafferty: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Maricopa, Arizona: 33.514808, -111.962142: : 3/24/2026: lilybugusa: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.512372, -112.514213: : 3/25/2026: bruuuhdy: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Occurrence Remarks: High up the Piestewa Peak Summit Trail. A number of them were sunning themselves on rocks.; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.672666, -116.41555: : 4/3/2026: Cameron W Barrows: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.674095, -116.426453: : 4/3/2026: Sue Shigenaga: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.674078, -116.426392: : 4/3/2026: Pete Schwartz: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.674042, -116.426528: : 4/3/2026: Pete Schwartz: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.674042, -116.42649: : 4/3/2026: Pete Schwartz: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.671256, -116.412231: : 4/3/2026: Alison Kreager: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.664716, -116.396948: : 4/4/2026: rowancalpoly: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.664736, -116.397413: : 4/4/2026: rowancalpoly: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.663472, -116.539361: : 4/4/2026: Zooey Sandel: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.628042, -115.994176: : 4/4/2026: Aaron Echols: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 375.00000.

Riverside, California: 33.641413, -116.318787: : 4/5/2026: mcitrin: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.641395, -116.31887: : 4/5/2026: Rpmillstein: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.674142, -116.426255: : 4/3/2026: Jan Thompson: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.684338, -116.364883: : 4/11/2026: mc_california: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.674172, -116.426278: : 4/3/2026: Alison Kreager: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 16.00000.

Riverside, California: 33.665951, -116.397962: : 4/4/2026: rowancalpoly: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.674042, -116.426514: : 4/3/2026: Alison Kreager: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Maricopa, Arizona: 33.479492, -111.5981: : 4/13/2025: Jackson Liddle: 13 Apr 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.665222, -116.396728: : 6/2/2026: Sue Shigenaga: 2 Jun 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.675553, -116.420967: : 4/20/2026: Zooey Sandel: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 206.00000.

Riverside, California: 33.674197, -116.420342: : 4/20/2026: Zooey Sandel: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.572628, -112.529419: : 4/10/2026: bluebirdsv: 10 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.624037, -115.99617: : 7/11/2026: leechy15: 11 Jul 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.667522, -116.398427: : 3/16/2026: Chris Evers: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

La Paz, Arizona: 33.566647, -113.94857: : 10/6/2025: Jorge Aguilera: 6 Oct 2025 ; Coordinate Uncertainty in Meters: 28957.00000.

Maricopa, Arizona: 33.586054, -112.513304: : 9/20/2025: ccchesser: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 9.00000.

GBIFID: 1836613795; Occurrence Remarks: Juvenile;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 3712422134; Occurrence Remarks: They are all over on camelback mtn;; Coordinate Uncertainty in Meters: 28957.00000.

GBIFID: 4936417111; Occurrence Remarks: Santa Rosa San Jacinto Area;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 3784973598; Occurrence Remarks: Likely Common Chuckwalla;; Coordinate Uncertainty in Meters: 249.00000.

GBIFID: 3784829870; Occurrence Remarks: Big boy. Not sure on the identification, saw him when hiking.;; Coordinate Uncertainty in Meters: 21.00000.

GBIFID: 3802570452; Occurrence Remarks: Female in front, male in back. He scurried back out of view before I could get a photo but he was very colorful like the other males in this area.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 3802426276; Occurrence Remarks: Doing some head-bobs.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 3802332282; Occurrence Remarks: was originally feeding on greenery from a bush before it fled to the ground as we approached;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 3802583578; Occurrence Remarks: 2 individuals here, one in a crack and one on the boulder;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1291059894; Occurrence Remarks: Chuckwalla basking on rocks on Camelback Mountain.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 3888778928; Occurrence Remarks: In our trip to Arizona, we found a ton of lizards. Long-nosed leopard lizards, zebra tailed lizards, dessert spiny lizards and my favorite; chuckwallas. These bulky lizards were my highlight of the trip. All the ones we caught were unharmed and healthy.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 1850928371; Occurrence Remarks: juvenile with recent tail damage.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1850927220; Occurrence Remarks: female;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 1850928386; Occurrence Remarks: female;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1850926968; Occurrence Remarks: male;; Coordinate Uncertainty in Meters: 12.00000.

GBIFID: 1850928100; Occurrence Remarks: female;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1850928738; Occurrence Remarks: juvenile;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 1850927030; Occurrence Remarks: juvenile;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1850928726; Occurrence Remarks: Three individuals: Female, and two juveniles;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1850927037; Occurrence Remarks: male;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1850928032; Occurrence Remarks: juvenile;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1850928768; Occurrence Remarks: Three individuals: male, female, juvenile;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1850928089; Occurrence Remarks: Male;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1850928347; Occurrence Remarks: Male, mid-afternoon on a hot day;; Coordinate Uncertainty in Meters: 12.00000.

GBIFID: 1850928413; Occurrence Remarks: male;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 1850939496; Occurrence Remarks: Male;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 1850939086; Occurrence Remarks: male, hanging out in the shade in mid afternoon;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1850946777; Occurrence Remarks: Chuckwalla;; Coordinate Uncertainty in Meters: 1032.00000.

GBIFID: 3911999764; Occurrence Remarks: hiding under a rock, but was about 1 long snout to tail;; Coordinate Uncertainty in Meters: 227.00000.

GBIFID: 3947607929; Occurrence Remarks: At construction site, attracted to the jackhammer;; Coordinate Uncertainty in Meters: 199.00000.

Riverside, California: 33.615241, -115.96748: : 3/3/2023: Sendy Hern├índez Orellana Barrows: 3 Mar 2023 :

GBIFID: 4076015619; Occurrence Remarks: about 4 inches long;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4096508010; Occurrence Remarks: Zoomed-in photo to add;; Coordinate Uncertainty in Meters: 11.00000.

GBIFID: 4130118575; Occurrence Remarks: Painted Canyon;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4138501346; Occurrence Remarks: On the rock in the top left corner;; Coordinate Uncertainty in Meters: 24.00000.

Maricopa, Arizona: 33.539353, -112.023326: : 3/1/2026: luismg9: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 198.00000.

GBIFID: 4528061447; Occurrence Remarks: Location approximate, from my friend;; Coordinate Uncertainty in Meters: 197.00000.

GBIFID: 4528319415; Occurrence Remarks: Location approximate, from my friend;; Coordinate Uncertainty in Meters: 197.00000.

GBIFID: 4528086130; Occurrence Remarks: two chuckwallas sunning on the higher rock;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4597164349; Occurrence Remarks: About the best picture I could manage of a pair of chucks who dove under this rock when I came down the trail;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 4606766137; Occurrence Remarks: Juvenile chuckwalla;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4847155849; Occurrence Remarks: Hatchling shedding first skin layer;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4851986765; Occurrence Remarks: Saw two Common Chuckwalla (a male in photo and a female) while I was hiking out and bird watching. It was on a rock ledge above the wash.;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 4854967551; Occurrence Remarks: Lizard of around 10 inches in length, orange back coloration with black shoulders and head. Bright coloration beginning behind hind legs and continuing down the tail.;; Coordinate Uncertainty in Meters: 726.00000.

GBIFID: 4855178995; Occurrence Remarks: Palm sized, banded with alternating dark and light green coloration;; Coordinate Uncertainty in Meters: 418.00000.

Riverside, California: 33.672129, -116.417925: : 4/12/2024: Alexander Gregory Mason: 12 Apr 2024 :

GBIFID: 4867900849; Occurrence Remarks: This is the same location where I last observed the common chuckwalla, but this time I saw the pair. Very cool.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4875506817; Occurrence Remarks: Different location than ones I previously observed;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4901079923; Occurrence Remarks: Yes, he was saved from a pool... pool was better set up after this to help this not happen again. You can see in these photos that his tail was recently dropped and is growing back into a tiny nub. He is regularly seen nearby, so he was released near some rocks and quickly ran to them.;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 2236888152; Occurrence Remarks: Found this beautiful little guy while hiking the Wind Cave Trail at User Mountain Park.;; Coordinate Uncertainty in Meters: 1395.00000.

GBIFID: 5008149282; Occurrence Remarks: Chuckq;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 4911087605; Occurrence Remarks: His tail is growing back well;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 4919252072; Occurrence Remarks: This was all I could see of this guy. When I got too near it, the tail suddenly snapped from one side to the other. Seemed like a good way to startle potential predators. It certainly startled me.;; Coordinate Uncertainty in Meters: 2711.00000.

GBIFID: 4952257258; Occurrence Remarks: location close but not exact;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4980289060; Occurrence Remarks: Hatchling. Umbilicus still open, so very recent hatch. Found basking in full sun, but lizard still quite cold and barely moving.;; Coordinate Uncertainty in Meters: 26.00000.

GBIFID: 5063871649; Occurrence Remarks: Anybody have a definitive on what this is?;; Coordinate Uncertainty in Meters: 33.00000.

GBIFID: 5087241346; Occurrence Remarks: Hatchling;; Coordinate Uncertainty in Meters: 16.00000.

GBIFID: 5104459524; Occurrence Remarks: Hatchling;; Coordinate Uncertainty in Meters: 7.00000.

GBIFID: 5141104499; Occurrence Remarks: Chuckwalla was walking across trail when I saw it. Rather docile and let me get within about 5-6tf of it. About 1 and a half to two feet in length. Its definitely a larger individual than most Chuckwallas;; Coordinate Uncertainty in Meters: 196.00000.

GBIFID: 2283070654; Occurrence Remarks: Pretty far from any nearby rocky areas.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5154878879; Occurrence Remarks: Found several of these guys on Camelback Mt!;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 5217537126; Occurrence Remarks: Sunbathing at twilight.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 2550039319; Occurrence Remarks: About 1 foot long. Was sunning itself and ran into a crevice when it saw me.;; Coordinate Uncertainty in Meters: 50.00000.

GBIFID: 2580267200; Occurrence Remarks: Scat;; Coordinate Uncertainty in Meters: 35.00000.

GBIFID: 2580093995; Occurrence Remarks: Scat;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 2580250196; Occurrence Remarks: Scat;; Coordinate Uncertainty in Meters: 19.00000.

GBIFID: 2574252019; Occurrence Remarks: 3 different Chuckwallas in the same area;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2573992670; Occurrence Remarks: Juvenile Chuckwalla;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2576349132; Occurrence Remarks: Randel Henderson Trail;; Coordinate Uncertainty in Meters: 206.00000.

GBIFID: 2576403295; Occurrence Remarks: Echo canyon;; Coordinate Uncertainty in Meters: 9.00000.

GBIFID: 2579303265; Occurrence Remarks: Along Randall Henderson Trail;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 2580136503; Occurrence Remarks: Art Smith Trail;; Coordinate Uncertainty in Meters: 86.00000.

GBIFID: 2580095596; Occurrence Remarks: Large chuckwalla; body about a foot long.;; Coordinate Uncertainty in Meters: 19.00000.

GBIFID: 2580129630; Occurrence Remarks: About a foot long.;; Coordinate Uncertainty in Meters: 33.00000.

Riverside, California: 33.608655, -116.381765: : 3/5/2020: Friends of the Desert Mountains: 5 Mar 2020 :
GBIFID: 2597831788; Occurrence Remarks: Observed by a Friends of the Desert Mountains trail camera on the Randall Henderson Trail in Palm Desert.;; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.62986, -116.307069: : 3/5/2020: Friends of the Desert Mountains: 5 Mar 2020 :
GBIFID: 2597799797; Occurrence Remarks: Observed by a Friends of the Desert Mountains trail camera on the Randall Henderson Trail in Palm Desert.;; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.632329, -116.37106: : 3/3/2020: Friends of the Desert Mountains: 3 Mar 2020 :
GBIFID: 2597903740; Occurrence Remarks: Observed by a Friends of the Desert Mountains trail camera on the Randall Henderson Trail in Palm Desert.;; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.612611, -116.275192: : 6/2/2017: Friends of the Desert Mountains: 2 Jun 2017 :

GBIFID: 5177067301; Occurrence Remarks: Basking;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2611158593; Occurrence Remarks: At thunderbird mountain on a hike!;; Coordinate Uncertainty in Meters: 40.00000.

GBIFID: 2611136610; Occurrence Remarks: Lower elevation @ 140ft +/- . Temp 90 degrees / 27% humidity. Note: I find the Chuckwallas in this area are very skittish and retreat quickly versus in other parts of the Coachella Valley. *I was at considerable distance with zoom lens.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3008521306; Occurrence Remarks: observed scat only.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2620207937; Occurrence Remarks: Female chuckwalla one a crevice.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 2626512707; Occurrence Remarks: Observed on Vista trail;; Coordinate Uncertainty in Meters: 1059.00000.

GBIFID: 2634557202; Occurrence Remarks: Subadult male.;; Coordinate Uncertainty in Meters: 65.00000.

GBIFID: 2634216391; Occurrence Remarks: Taken along Art Smith trail this morning. Above Bighorn Subdivision.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2641376320; Occurrence Remarks: 90 degrees. Windspeed 10mph. Male adult posturing on rock to distant female.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 2641577338; Occurrence Remarks: 90 degrees. Windspeed 10mph. Male adult;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2641441314; Occurrence Remarks: 90 degrees. Windspeed 10mph. Female adult. Male adult was posturing on rock in the distance;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1453493610; Occurrence Remarks: Chuckwalla on Art Smith Trail;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2826257306; Occurrence Remarks: Saw this guy on this same rock 3 days ago, wasnÆt able to get a pic. Checked every day and he was finally back! Not the best pic but I was happy to see him nonetheless.;; Coordinate Uncertainty in Meters: 22.00000.

GBIFID: 2851015059; Occurrence Remarks: Spotted ON THE ROAD. A female was nearby as well but she ran when she heard my footsteps.;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 2465135119; Occurrence Remarks: scatt;; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.683564, -116.364436: : 4/19/2026: Chris Tracy: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 40.00000.

Riverside, California: 33.68471, -116.364756: : 4/19/2026: Chris Tracy: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 20.00000.

Riverside, California: 33.68423, -116.364765: : 4/19/2026: Chris Tracy: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 3058897288; Occurrence Remarks: Hard to get a good photo while it was in the crevice, but definitely a young chuckwalla, probably last yearΓÇÖs hatchling. First one IΓÇÖve seen this spring.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 3058920203; Occurrence Remarks: Tail stuck in a bush. Apparently sone shrikes have been hanging around. Maybe their pantry;; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.586278, -115.975817: : 3/21/2021: Sendy Hern├índez Orellana Barrows: 21 Mar 2021 :

Riverside, California: 33.586022, -115.975633: : 3/27/2021: Sendy Hern├índez Orellana Barrows: 27 Mar 2021 :

GBIFID: 4062710344; Occurrence Remarks: This Chuckwalla decided to go for a swim in our pool today. It couldnΓÇÖt climb back out - so helped it out with the net.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 1586121303; Occurrence Remarks: Female, found behind the trash can in the background. Quite thin but with a full gut. Possibly recently post oviposition?;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 3079774214; Occurrence Remarks: Saw this Chuchwalla basking under the afternoon sun around 12:00pm by a rock crevice on the side of a stony hill.;; Coordinate Uncertainty in Meters: 44.00000.

GBIFID: 3090886780; Occurrence Remarks: Elevation 200ft;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 3112298831; Occurrence Remarks: One of the many Chuckwalla found on todayΓÇÖs trip. It was found in one of the bucket traps set by the biologist.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3112584008; Occurrence Remarks: This Chuckwalla lizard was found in Scottsdale Az, on a hike I was on. This organism was found under a rock with its body in the sun. After some research found on the Arizona Desert Museum Website, I found that it is in the lizard family found in Northern Mexico and in several southern states.;; Coordinate Uncertainty in Meters: 47828.00000.

Riverside, California: 33.667727, -116.229242: : 7/8/2017: Friends of the Desert Mountains: 8 Jul 2017 :

Riverside, California: 33.681917, -116.350377: : 6/25/2017: Friends of the Desert Mountains: 25 Jun 2017 :

GBIFID: 3118457586; Occurrence Remarks: loc approx;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 3321118081; Occurrence Remarks: Found basking on a stony hillside around 8AM;; Coordinate Uncertainty in Meters: 132.00000.

GBIFID: 3333251604; Occurrence Remarks: Skyline Park;; Coordinate Uncertainty in Meters: 244.00000.

GBIFID: 3338098568; Occurrence Remarks: DOR Heavy monsoonal downpour;; Coordinate Uncertainty in Meters: 122.00000.

GBIFID: 3343757620; Occurrence Remarks: Neat little thing;; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.55537, -112.104962: : 4/1/2026: CheeseFondue: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 28957.00000.

Riverside, California: 33.637733, -115.991875: : 3/18/2026: caknight13: 18 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.604463, -115.781815: : 9/7/2025: randall simpson: 7 Sep 2025 ; Coordinate Uncertainty in Meters: 6.00000.

Maricopa, Arizona: 33.631171, -112.026231: : 8/28/2025: Kathryn Dick: 28 Aug 2025 ; Coordinate Uncertainty in Meters: 28930.00000.

Maricopa, Arizona: 33.519846, -111.971897: : 4/25/2026: Haoning Gong: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Maricopa, Arizona: 33.537317, -112.021722: : 3/31/2026: manu-klein: 31 Mar 2026 ; Coordinate Uncertainty in Meters: 43.00000.

GBIFID: 3902398199; Occurrence Remarks: large adult; digitized from slide;; Coordinate Uncertainty in Meters: 56383.00000.

Occurrence Remarks: Occurrence Remarks: cloudy, ~92 degrees; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.782963, -116.556427: : 10/16/2025: quandary: 16 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.718876, -112.247806: : 8/11/2025: aridaire: 11 Aug 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.832867, -112.279342: : 9/2/2025: Steve DaCosta: 2 Sep 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Maricopa, Arizona: 33.694034, -112.17788: : 10/23/2025: jphett: 23 Oct 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.699444, -116.374203: : 7/27/2026: ciaracastro09: 27 Jul 2026 ; Coordinate Uncertainty in Meters: 25.00000.

GBIFID: 3915679302; Occurrence Remarks: This pair is from a family of eight baby chuckwallas that were seen together. Recently hatched?;; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.698096, -112.191646: : 10/11/2025: jphett: 11 Oct 2025 ; Coordinate Uncertainty in Meters: 9.00000.

1309; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.820613, -116.558968: : 4/8/2026: quandary: 8 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.701025, -116.37088: : 5/30/2026: Frank Sterrett: 30 May 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.737839, -115.803295: : 4/4/2026: Efrain Rangel: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 372.00000.

Riverside, California: 33.739012, -115.80305: : 3/7/2026: josephrlee: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 1.00000.

Riverside, California: 33.925808, -115.962037: : 4/19/2026: gsikkens: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.739362, -115.803375: : 4/20/2026: cherylmorgan: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.739312, -115.803213: : 4/20/2026: cherylmorgan: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.718833, -115.777222: : 4/24/2026: Cathy Wiley: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.716678, -115.771112: : 4/24/2026: Cathy Wiley: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.724295, -115.787147: : 4/24/2026: desertjules: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.873415, -115.900992: : 11/9/2025: Rosalind Helfand: 9 Nov 2025 ; Coordinate Uncertainty in Meters: 1886.00000.

Riverside, California: 33.7342, -115.799094: : 11/10/2025: ifreedman: 10 Nov 2025 ; Coordinate Uncertainty in Meters: 11.10000.

Riverside, California: 33.873055, -115.910428: : 11/10/2025: ykorotkova: 10 Nov 2025 ; Coordinate Uncertainty in Meters: 6596.00000.

Riverside, California: 33.921033, -115.783435: : 5/9/2026: mickey_ki: 9 May 2026 ; Coordinate Uncertainty in Meters: 27969.00000.

Riverside, California: 33.721333, -116.405212: : 5/16/2026: tessdejonge: 16 May 2026 ; Coordinate Uncertainty in Meters: 997.00000.

Riverside, California: 33.935128, -116.132119: : 5/15/2026: chuckster12: 15 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 33.735719, -115.809038: : 5/22/2026: Alex Echenberg: 22 May 2026 ; Coordinate Uncertainty in Meters: 75.00000.

Riverside, California: 33.792688, -116.48595: : 5/25/2026: Jose: 25 May 2026 ; Coordinate Uncertainty in Meters: 68.00000.

Riverside, California: 33.904156, -115.102565: : 5/22/2026: Jody Cope: 22 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.708588, -116.29753: : 5/25/2026: cmdv1955: 25 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.804164, -116.561046: : 5/29/2026: James Maughn: 29 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4103048375; Occurrence Remarks: vargas bioblitz 042923;; Coordinate Uncertainty in Meters: 122.00000.

GBIFID: 1088929113; Occurrence Remarks: Riverside County, California, US;; Coordinate Uncertainty in Meters: 25.00000.

Riverside, California: 33.712799, -115.763809: : 3/21/2026: Chris Thawley: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 40.00000.

Riverside, California: 33.712615, -115.764348: : 3/21/2026: Chris Thawley: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 75.00000.

Riverside, California: 33.70863, -116.297583: : 7/2/2026: cmdv1955: 2 Jul 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.91162, -112.221579: : 2/12/2026: Eric Hough: 12 Feb 2026 ; Coordinate Uncertainty in Meters: 28902.00000.

Riverside, California: 33.739622, -115.804364: : 2/13/2026: Mercedes St. John: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.82822, -116.282753: : 2/15/2026: mcitrin: 15 Feb 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 33.828215, -116.282714: : 2/15/2026: Rpmillstein: 15 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.71917, -115.809357: : 2/22/2026: Cameron W Barrows: 22 Feb 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 33.797839, -115.353829: : 2/22/2026: herpfondler69: 22 Feb 2026 ; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.73507, -115.812052: : 2/23/2026: Allan Scott: 23 Feb 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.829312, -116.29093: : 2/23/2026: Siwin Lo: 23 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.791894, -115.383428: : 2/22/2026: california_every_reptile: 22 Feb 2026 ; Coordinate Uncertainty in Meters: 28930.00000.

Maricopa, Arizona: 33.694962, -112.178908: : 2/25/2026: jphett: 25 Feb 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Maricopa, Arizona: 33.695003, -112.177172: : 2/25/2026: jphett: 25 Feb 2026 ; Coordinate Uncertainty in Meters: 17.00000.

Riverside, California: 33.74078, -115.81108: : 2/27/2026: mackenzie_hollender: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.731308, -116.533189: : 2/9/2026: curt_nimz: 9 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.732616, -115.817621: : 2/27/2026: avatrail: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 10216.00000.

Riverside, California: 33.722255, -115.782783: : 2/28/2026: Shaylee A.: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.872761, -115.900992: : 2/28/2026: Jacob Honn: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 52784.00000.

Riverside, California: 33.722615, -115.808143: : 3/4/2026: Cameron W Barrows: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.722717, -115.808212: : 3/4/2026: Cameron W Barrows: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.721553, -115.807838: : 3/4/2026: Cameron W Barrows: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.728606, -111.865863: : 3/5/2026: Emma Jaworski: 5 Mar 2026 ; Coordinate Uncertainty in Meters: 536.00000.

Riverside, California: 33.734204, -115.805271: : 3/4/2026: agoldber: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.73226, -115.800112: : 3/4/2026: agoldber: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 33.71017, -116.401962: : 3/8/2026: Bob Keeran: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.739328, -115.803302: : 3/4/2026: agoldber: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.745197, -115.811565: : 3/8/2026: Anna Mindel: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 199.00000.

Occurrence Remarks: Chuckwalla scurried between the rocks right on the Lost palms trail.; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.890561, -115.74655: : 3/14/2026: Bill: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 28902.00000.

Riverside, California: 33.738855, -115.802912: : 3/14/2026: edavancens: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.733762, -115.799553: : 3/14/2026: edavancens: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.819287, -116.169937: : 3/15/2026: Makena: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Riverside, California: 33.734163, -115.799112: : 3/15/2026: bayleystevens14: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.740144, -115.812047: : 3/13/2026: Jeff Niznik: 13 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.746569, -111.864698: : 4/29/2026: torinorth: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 48.00000.

Riverside, California: 33.781463, -116.550682: : 10/16/2025: quandary: 16 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.712622, -115.765092: : 4/24/2026: desertjules: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.873415, -115.900992: : 3/13/2026: clarksnutcracker_limberpine_shipper: 13 Mar 2026 ; Coordinate Uncertainty in Meters: 29277.00000.

Maricopa, Arizona: 33.819681, -111.942969: : 4/24/2026: Samuel A Schmid, PhD, PWS: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.927626, -115.792016: : 4/27/2026: chezasaurus: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 12319.00000.

Riverside, California: 33.733519, -115.798567: : 4/29/2026: amamo: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 4531.00000.

Occurrence Remarks: a large darkly colored lizard that was sunbathing on a rock; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.81075, -116.799213: : 4/18/2026: Richard Robbins: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 28902.00000.

Maricopa, Arizona: 33.694947, -112.177467: : 5/5/2026: jphett: 5 May 2026 ; Coordinate Uncertainty in Meters: 19.00000.

Maricopa, Arizona: 33.694745, -112.178663: : 5/5/2026: jphett: 5 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.913876, -115.839135: : 5/9/2026: bokeh_cat: 9 May 2026 ; Coordinate Uncertainty in Meters: 50.00000.

Riverside, California: 33.78284, -116.556375: : 5/10/2026: Scott Collins: 10 May 2026 ; Coordinate Uncertainty in Meters: 28.00000.

Riverside, California: 33.827667, -116.281808: : 1/19/2026: skippydeluba: 19 Jan 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.763562, -116.55362: : 2/1/2026: rasythach_87: 1 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.749035, -116.54221: : 1/30/2026: alexb0000: 30 Jan 2026 ; Coordinate Uncertainty in Meters: 15.00000.

Occurrence Remarks: Looking back at the photos this looks like the same juvenile chuckwalla as in https://www.inaturalist.org/observations/337050662, just half an hour later on my return hike.; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.75043, -116.542829: : 1/30/2026: alexb0000: 30 Jan 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.762548, -116.306219: : 2/7/2026: Susan Fawcett: 7 Feb 2026 ; Coordinate Uncertainty in Meters: 28930.00000.

Maricopa, Arizona: 33.736226, -112.165561: : 3/17/2026: Tom Horton: 17 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.88752, -115.808258: : 4/30/2025: cwlonie: 30 Apr 2025 ; Coordinate Uncertainty in Meters: 1.00000.

Riverside, California: 33.728635, -116.355669: : 5/4/2025: kwgeiger: 4 May 2025 ; Coordinate Uncertainty in Meters: 7068.00000.

Riverside, California: 33.84082, -115.771592: : 9/14/2025: Cathy Wiley: 14 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.732575, -116.535615: : 9/15/2025: Chris W.: 15 Sep 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.84602, -115.780272: : 9/17/2025: cmdv1955: 17 Sep 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.846017, -115.78018: : 9/17/2025: Cathy Wiley: 17 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.708508, -116.29753: : 9/25/2025: cmdv1955: 25 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.734405, -112.09722: : 9/27/2025: Jorge Aguilera: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 28930.00000.

Maricopa, Arizona: 33.775485, -112.13: : 9/27/2025: Jorge Aguilera: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.896132, -115.85441: : 9/28/2025: annas-element: 28 Sep 2025 ; Coordinate Uncertainty in Meters: 27982.00000.

Riverside, California: 33.733756, -116.536711: : 4/1/2026: James Fowler: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.735092, -115.809005: : 5/10/2026: cameronmercer22: 10 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.870872, -116.691047: : 5/14/2026: n_sparks: 14 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.935153, -116.132142: : 5/15/2026: Cameron W Barrows: 15 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.935089, -116.132156: : 5/15/2026: Pete Schwartz: 15 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.873415, -115.900992: : 2/23/2026: Barry Saxifrage: 23 Feb 2026 ; Coordinate Uncertainty in Meters: 34170.00000.

Riverside, California: 33.935172, -116.132103: : 5/15/2026: Jan Thompson: 15 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.837093, -115.838828: : 5/17/2026: eshafer24: 17 May 2026 ; Coordinate Uncertainty in Meters: 18951.00000.

Riverside, California: 33.846614, -115.82898: : 5/17/2026: eshafer24: 17 May 2026 ; Coordinate Uncertainty in Meters: 24584.00000.

Riverside, California: 33.801406, -115.823453: : 5/17/2026: eshafer24: 17 May 2026 ; Coordinate Uncertainty in Meters: 17613.00000.

Riverside, California: 33.78978, -116.510345: : 3/16/2026: Terry Bonace: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.739783, -115.804633: : 3/15/2026: kyleemcf: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.712622, -115.763438: : 3/15/2026: janice modin: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.759826, -116.550486: : 3/14/2026: Melissa McMasters: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 27.00000.

Riverside, California: 33.734385, -115.799851: : 3/16/2026: Michelle: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 618.00000.

Maricopa, Arizona: 33.728508, -111.863494: : 3/23/2026: griffinspots: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.72777, -111.862974: : 3/23/2026: griffinspots: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Maricopa, Arizona: 33.730469, -111.865279: : 3/23/2026: griffinspots: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.701225, -116.371812: : 3/23/2026: desertjules: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 16.00000.

Riverside, California: 33.700662, -116.369858: : 3/23/2026: desertjules: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Occurrence Remarks: Looked to be 1-2 lbs. Longer than 12 inches; Coordinate Uncertainty in Meters: 68.00000.

Riverside, California: 33.73447, -115.801495: : 3/20/2026: Mark Ivey: 20 Mar 2026 ; Coordinate Uncertainty in Meters: 312.00000.

Riverside, California: 33.718078, -115.775712: : 3/23/2026: ananke ≡ƒªë: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.732583, -116.535613: : 3/27/2026: pinerino: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.873415, -115.900992: : 3/25/2026: bobbybao: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 52530.00000.

Riverside, California: 33.873415, -115.900992: : 2/24/2026: haley_d: 24 Feb 2026 ; Coordinate Uncertainty in Meters: 52530.00000.

Riverside, California: 33.735682, -115.808572: : 3/15/2026: Rebecca Siefker: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 81.00000.

Riverside, California: 33.899005, -115.787049: : 3/29/2026: ricebucket: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 16784.00000.

Riverside, California: 33.732314, -115.802069: : 4/5/2026: James Parham: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 36.00000.

Riverside, California: 33.873415, -115.900992: : 4/1/2026: Ruth Metterhausen: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 30000.00000.

Occurrence Remarks: Juvenile; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.933312, -115.990745: : 4/2/2026: Erica Keller: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 1953.00000.

Riverside, California: 33.934451, -115.996238: : 4/2/2026: Erica Keller: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 1953.00000.

Maricopa, Arizona: 33.728714, -111.86551: : 4/3/2026: theotherkevinsmith: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: it scurried quickly into a small crevice after it was discovered.; Coordinate Uncertainty in Meters: 397.00000.

Riverside, California: 33.740796, -115.806358: : 4/7/2026: Cam Fox: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.733684, -115.799457: : 4/7/2026: Cam Fox: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.7323, -115.80009: : 4/7/2026: Cam Fox: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 11.10000.

Riverside, California: 33.732561, -116.535599: : 10/6/2025: Chris W.: 6 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.741203, -115.809433: : 10/4/2025: Rachel Bailey: 4 Oct 2025 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 33.873415, -115.900992: : 4/30/2025: Chris: 30 Apr 2025 ; Coordinate Uncertainty in Meters: 52530.00000.

Maricopa, Arizona: 33.813727, -111.952293: : 5/25/2025: twentyonesaguaros: 25 May 2025 ; Coordinate Uncertainty in Meters: 1891.00000.

Occurrence Remarks: Really wish we got a better look at this incredible animal, but an amazing lifer for me!; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.733778, -115.799182: : 4/7/2025: Paul G. Johnson: 7 Apr 2025 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.734228, -115.799217: : 4/7/2025: Paul G. Johnson: 7 Apr 2025 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.733642, -115.804755: : 6/1/2026: haileyro: 1 Jun 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.738403, -115.802483: : 6/1/2026: haileyro: 1 Jun 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.872662, -115.900992: : 6/23/2025: Amanda: 23 Jun 2025 ; Coordinate Uncertainty in Meters: 56656.00000.

Riverside, California: 33.736803, -115.810333: : 6/20/2026: Jewelwing66: 20 Jun 2026 ; Coordinate Uncertainty in Meters: 2792.00000.

Riverside, California: 33.73758, -115.809939: : 6/20/2026: paulswitzer: 20 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.700969, -112.193858: : 10/3/2025: mkennard2: 3 Oct 2025 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.734238, -115.799142: : 10/12/2025: pavelbykau: 12 Oct 2025 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.899265, -115.814858: : 4/19/2026: oilgavart: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 28902.00000.

Maricopa, Arizona: 33.749743, -111.840671: : 3/26/2026: gmcnaughton99: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 1056.00000.

Riverside, California: 33.732575, -116.535613: : 9/15/2025: batshipcrazy407: 15 Sep 2025 ; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 3698198711; Occurrence Remarks: Very small, juvenile chuckwalla;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1838343202; Occurrence Remarks: Small/young male;; Coordinate Uncertainty in Meters: 7093.00000.

GBIFID: 3760033634; Occurrence Remarks: Caught this Chuckwalla to show the kids.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3759667985; Occurrence Remarks: 3 individuals on the same mound. Adult male & female and a juvenile. :);; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 3764101833; Occurrence Remarks: With scat;; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.722519, -116.272424: : 4/14/2018: Friends of the Desert Mountains: 14 Apr 2018 :
GBIFID: 1839233573; Occurrence Remarks: M2E103L208-208R377B377;; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.766097, -116.377252: : 4/1/2018: Friends of the Desert Mountains: 1 Apr 2018 :
GBIFID: 1839233535; Occurrence Remarks: M2E105L213-214R376B376;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 1839233869; Occurrence Remarks: M2E60L177-177R399B387;; Coordinate Uncertainty in Meters: 28930.00000.

Riverside, California: 33.913969, -115.839756: : 7/2/2026: avadraper11: 2 Jul 2026 ; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 4400446402; Occurrence Remarks: Found dried up.;; Coordinate Uncertainty in Meters: 653.00000.

GBIFID: 3860404672; Occurrence Remarks: 2 individual Juveniles;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 3858725734; Occurrence Remarks: Male;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 1847510712; Occurrence Remarks: Given the red back, this is presumably a male. Sorry for the less-than-natural setting and poor picture, but he scooted off when I tried to get closer.;; Coordinate Uncertainty in Meters: 24.00000.

GBIFID: 3874010106; Occurrence Remarks: Munching on flowers;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 3903226739; Occurrence Remarks: Observed 3 chuckwallas during the afternoon.;; Coordinate Uncertainty in Meters: 258.00000.

GBIFID: 3915614312; Occurrence Remarks: The common chuckwalla (Saueomalus Ater) family Iguanadae. Black and whitish(yellowish) pattern, large lizard, they swallow air air to puff up and look bigger. I found this chuckwalla in a trial at Palm Springs.;; Coordinate Uncertainty in Meters: 10068.00000.

GBIFID: 1883468480; Occurrence Remarks: Found in the small rock hills about 2 miles from the West Entrance.;; Coordinate Uncertainty in Meters: 52530.00000.

GBIFID: 4018590160; Occurrence Remarks: DidnÆt know anything could be this chill;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1890674496; Occurrence Remarks: this one was found in a very rocky area near Porcupine Wash in Joshua Tree National Park. I have also seen these near the Mastadon Peak area.;; Coordinate Uncertainty in Meters: 52530.00000.

GBIFID: 4062803917; Occurrence Remarks: Probably a common chuckwalla (Sauromalus ater).;; Coordinate Uncertainty in Meters: 25.00000.

GBIFID: 4062904217; Occurrence Remarks: This was clearly a hatchling/young juvenile. About 4ΓÇ¥ inches snout to tail tip.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4067644222; Occurrence Remarks: There was a lot of Chuckwallas along this trail.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1890714372; Occurrence Remarks: Pics 2 and 3 are from my trip back about half an hour after the first pic, he had moved onto the top of the rock by then;; Coordinate Uncertainty in Meters: 45.00000.

GBIFID: 1890714322; Occurrence Remarks: One of the most colorful and most cooperative chuckwallas Ive encountered;; Coordinate Uncertainty in Meters: 45.00000.

GBIFID: 4076460703; Occurrence Remarks: Male and female, the female ran off under a neighboring rock but the male was a little more willing to hold his ground.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 4091524724; Occurrence Remarks: On boulders along the Mastodon Peak trail in Joshua Tree National Park;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4091908750; Occurrence Remarks: About 12ΓÇ¥ long in total.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4096737720; Occurrence Remarks: Scat, up to 5 cm long segments;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4103308199; Occurrence Remarks: missing/re-growing back leg and tail;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4129810022; Occurrence Remarks: A male and female bobbing their heads and following each other around.;; Coordinate Uncertainty in Meters: 56383.00000.

GBIFID: 4133774625; Occurrence Remarks: Circled on a rock behind 4 bighorns didnΓÇÖt seem to mind their presence whatsoever.;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 4145671527; Occurrence Remarks: Inside the desert bighorn enclosure.;; Coordinate Uncertainty in Meters: 256.00000.

GBIFID: 4400347630; Occurrence Remarks: Photographer Chris Scharf - client of Royle Safaris on tour;; Coordinate Uncertainty in Meters: 56383.00000.

Riverside, California: 33.873415, -115.900992: : 3/26/2015: NHMLA Community Science Program: 26 Mar 2015 :
GBIFID: 1143521542; Occurrence Remarks: Observation and photo by Stacey Kiser.;; Coordinate Uncertainty in Meters: 65402.00000.

GBIFID: 4438696408; Occurrence Remarks: *Note: covered in biting flies (midges?);; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4512195519; Occurrence Remarks: unsure of ID.;; Coordinate Uncertainty in Meters: 52530.00000.

GBIFID: 1703121743; Occurrence Remarks: Common Chuckwalla (Sauromalus ater), Cottonwood Canyon, Joshua Tree National Park;; Coordinate Uncertainty in Meters: 16.00000.

GBIFID: 4599886782; Occurrence Remarks: A very cooperative gentleman.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4607076529; Occurrence Remarks: Sloughing skin around neck;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 2006049488; Occurrence Remarks: I used to run and hike this mountain often while attending MMI. I would see countless Chuckwallas along with crotalus atrox and crotalus pyrrhus. Most people never even see them. People have headphones in oblivious to whatÆs around them. IÆd be taking photos of big orange back chucks and people would ask why IÆm laying on the ground? What am I photographing? They couldnÆt even see these chucks right in front of me looking directly at them! One guy said he has hiked the mountain over 20 years and never even noticed them. City people forget about the wilderness isolated to these little pockets inside of Phoenix. IÆm super happy they survive and manage to make it with so many people building homes around their home.;; Coordinate Uncertainty in Meters: 173.00000.

GBIFID: 4847203303; Occurrence Remarks: At Living Deserr trails;; Coordinate Uncertainty in Meters: 50.00000.

GBIFID: 4852822413; Occurrence Remarks: Adult male;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 4852035574; Occurrence Remarks: Adult female;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 4852769036; Occurrence Remarks: juvenile chuckwalla caught and released. it was found basking in the sun at 83┬░F;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 2028498391; Occurrence Remarks: Had a wide, yellow band around the belly;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4863851442; Occurrence Remarks: Saw him and a rattle snake on a motherÆs day walk;; Coordinate Uncertainty in Meters: 324.00000.

Maricopa, Arizona: 33.727445, -111.862162: : 2/15/2026: kimnezore: 15 Feb 2026 ; Coordinate Uncertainty in Meters: 80.00000.

Riverside, California: 33.712776, -115.763672: : 3/18/2019: Nico Esteban Vega Ramirez: 18 Mar 2019 :

GBIFID: 4921724383; Occurrence Remarks: Bardoo Canyon. Biggest Chuckawalla IΓÇÖve ever seen. Sadly living with all the human garbage that people dump there;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1211986881; Occurrence Remarks: Large iguana up in the rocks;; Coordinate Uncertainty in Meters: 194.00000.

GBIFID: 4946445507; Occurrence Remarks: Seen through my bathroom window;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2251903783; Occurrence Remarks: RICOH IMAGING Joshua tree national park, lost palms oasis trail, about 2 1/2 miles from the trailhead.;; Coordinate Uncertainty in Meters: 244.00000.

GBIFID: 2251909795; Occurrence Remarks: head and tail;; Coordinate Uncertainty in Meters: 11864.00000.

Riverside, California: 33.913668, -116.545336: : 6/13/2011: NHMLA Community Science Program: 13 Jun 2011 :
GBIFID: 1249289490; Occurrence Remarks: Observation and photo submitted by Harlynne Geisler via email to rascals@nhm.org;; Coordinate Uncertainty in Meters: 10475.00000.

GBIFID: 1249291471; Occurrence Remarks: Very docile, high up on a mountain ridge, basking in the sun.;; Coordinate Uncertainty in Meters: 327.00000.

GBIFID: 5104572180; Occurrence Remarks: Lykken Trail;; Coordinate Uncertainty in Meters: 1.00000.

GBIFID: 5108152739; Occurrence Remarks: Location not precise;; Coordinate Uncertainty in Meters: 2036.00000.

GBIFID: 2265863396; Occurrence Remarks: First time that Ive seen this lizard. Then I get to see two. It is springtime, so thinking male and female with the female being the one maybe filled with eggs. Im not the expert. :);; Coordinate Uncertainty in Meters: 196.00000.

GBIFID: 2265863317; Occurrence Remarks: First time that Ive seen this lizard. Then I get to see two. It is springtime, so thinking male and female with the female being the one maybe filled with eggs. Im not the expert. :);; Coordinate Uncertainty in Meters: 196.00000.

GBIFID: 2265862814; Occurrence Remarks: First time that Ive seen this lizard. Then I get to see two. It is springtime, so thinking male and female with the female being the one maybe filled with eggs. Im not the expert. :);; Coordinate Uncertainty in Meters: 196.00000.

GBIFID: 2269305604; Occurrence Remarks: A red-tailed hawk swooped down at me about 5 seconds after this photo was taken. I definitely ruined her meal time. Side note: two others and myself were all pretty certain that was a red-tailed hawk. Is that supposed to be here?? What else could it be?;; Coordinate Uncertainty in Meters: 22.00000.

GBIFID: 2273270446; Occurrence Remarks: Very light colored head & front body.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 1257415260; Occurrence Remarks: I was excited about this chuckwalla find, but could not get a good enough picture of it. I also posted a habitat picture of the desert/rocky terrain of where i found this giant lizard.;; Coordinate Uncertainty in Meters: 76.00000.

GBIFID: 5153107435; Occurrence Remarks: While hiking the trails that lead to the cross on the top of the mountain behind Target, I spotted this Chuckwalla. I saw the Chuckwalla sunning on a rock and decided to take a picture and capture the moment. This was the only one in the area that I could spot. The weather was hot and dry with minimal wind. It was roughly 90 degrees outside. I was able to follow the Chuckwalla to a hiding hole where I collected another picture. I have seen a few after this encounter and really respect them. There is a community member who told me about how they have sensitive eardrums and how motorcycles with loud engines can damage those eardrums.;; Coordinate Uncertainty in Meters: 11837.00000.

GBIFID: 5167917895; Occurrence Remarks: ~88 degrees F;; Coordinate Uncertainty in Meters: 12.00000.

GBIFID: 5168213384; Occurrence Remarks: Common Chuckwalla (Sauromalus ater) lounging in the sun in Joshua Tree National Park in the Mojave Desert, CA. Photo credit: Marc R. COMPARE 2 arid desert-adapted Lizards, both in the Iguanas and Chuckwallas (Iguanidae) family: Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) Common Chuckwalla (Sauromalus ater) My favorite Desert Iguana (Dipsosaurus dorsalis) observations: Desert Iguana (Dipsosaurus dorsalis) and the subspecies Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Amphibians and Reptiles of California: (only lists the ssp. Northern Desert Iguana) Size: 4 - 5 3/4 inches long from snout to vent (10 - 14.6 cm). Appearance: it is a large lizard with a very long thick tail and a small head with a blunt nose. Scales are small and granular except for a row of enlarged keeled scales on the middle of the back which form a crest which extends to near the end of the tail. Color is pale beige or gray with reddish-brown markings, creating the appearance of a dark background with pale round spots, sometimes forming bands, along with irregular broken lengthwise dark markings. Dark markings form rings around the tail. Underside is pale with reddish or buffy areas on the sides of the belly during breeding season. Male / Female Differences: Males and females are minimally sexually dimorphic. There is almost no visible difference between males and females except that males generally have enlarged femoral pores during the breeding months. Males and females do not differ in snout-vent length, head length, or head width. Juveniles often have a more strongly contrasted pattern than adults. Life History and Behavior: Active in daytime. Often seen on rocks basking in the hot sun. Able to tolerate very high temperatures, higher than any other North American reptile. Frequently active after high temperatures force other lizards to seek shelter. It is a very fast runner. Seeks refuge in burrows, often located at the base of creosote bushes. Hibenates in burrows during the winter. Diet and Feeding: Eats mostly plant material - leaves, flower buds, and flowers. Creosote bush is a staple food. Also eats insects, carrion, fecal pellets. Feeds by climbing branches of creosote bushes and other plants. Reproduction: Breeds from April to July. Female lays a clutch of 3 - 8 eggs from June to August. Habitat: Creosote Bush plant communities, desert flats, scrub, dunes, washes, streambeds, and floodplains. Most common in sandy areas. Occurs in rocky areas with sandy hummocks. Geographical Range: Occurs primarily where Creosote scrub occurs, on the desert sides of Southern California mountiains, and the Eastern Sierra Nevada mountains in the Owens Valley, to the Arizona, Nevada, and Baja California Borders. Amphibians and Reptiles of California: COMPARE TO My favorite Common Chuckwalla (Sauromalus ater) Hatchling: https://www.inaturalist.org/observations/68029395 Adult in Baja California, Mexico: https://www.inaturalist.org/observations/108220643 Common Chuckwalla (Sauromalus ater) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Conservation Status: Sujeta a protecci├│n especial in Mexico. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html Size: 5 - 9 inches long from snout to vent (12.7 - 22.8 cm). It is the second largest lizard native to the United States. (The Gila Monster is larger). (Floridas Green Iguanas are not native to the state.) Appearance: it is a large, flat-bodied lizard with a large rounded belly, and a wide-based blunt-tipped tail. The neck and sides of the body are covered with loose folds of skin. Scales are small and granular. Tail will regenerate if detached. Males have enlarged femoral pores. Color and Pattern: Several color patterns occur. Color can be black, reddish, gray, brown, yellow, or tan. Color changes with age and varies with the color of the habitat. Some individuals have red torsos. The tail and sides are light gray or cream, sometimes reddish. Male / Female Differences: Males have dark, usually black, head, chest, and limbs, with red, black, or yellowish backs. Sometimes the dark coloring is covered with light spots and flecks. Females usually retain some of the juvenile body and tail banding. The body and tail of young chuckwallas are more prominently banded with dark and yellow coloring. Activity: Diurnal. Rock-dwelling, sheltering in rock crevices or under rocks. Rocks, especially large outcrops and boulder piles, are used for basking. Chuckwallas are often seen in the morning basking on a large rock pile. After basking, they leave the rocks to forage for food. Most active from spring through fall, remaining inactive in deep rock crevices during the cold of winter, but may be active all year in warmer areas. Also retreats into rock crevices during extreme heat. Defense: When disturbed, a chukwalla will retreat quickly into a rock crevice, inflating its body with air and using its strong claws and rough skin to tightly wedge itself into the crevice to make extraction difficult. Diet and Feeding: Eats a variety of plant leaves and flowers and fruit, including creosote bush flowers. Occasionally eats insects. Reproduction: Breeds from April to June. Females lay 5 -16 eggs from June to August. Females may only lay eggs every two or three years. Eggs hatch in late September. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html (includes great photos). Irenes Lizards (Sauria Suborder) observations on INaturalist, worldwide: Amphibians and Reptiles of California: (excellent photos and descriptions): https://californiaherps.com Reptiles and Amphibians of California: an INaturalist Project (261+ species): (mine: 40+ species): RASCals (Reptiles & Amphibians of Southern California): an INaturalist Project: https://www.inaturalist.org/projects/rascals Amphibians and Reptiles of the Anza-Borrego Desert Region: A Photographic Field Guide, L. Lee Grismer and Marta S. Grismer, 2024 (excellent photos and descriptions) Reptile Database (worldwide) https://reptile-database.reptarium.cz/ Desert Lizards, by James W. Cornett, 2006 (of the Southwest U.S. Desert) Animal Diversity Web (ADW) is an online database, an encyclopedia of animal natural history, distribution, classification, glossary, and conservation biology: https://animaldiversity.org/ Irenes (aparrot1) Profile Page on INaturalist listing Nature Resources (includes online references with links) for Plants, Birds, Fungi, Lepidoptera, Arachnids, Reptiles, Amphibians, Marine Life, Plant Galls, and more: https://www.inaturalist.org/people/3188668;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 5168076908; Occurrence Remarks: 97 degrees F;; Coordinate Uncertainty in Meters: 7.00000.

GBIFID: 5176779885; Occurrence Remarks: On a 90┬░ morning I spotted this Chuckwalla lizard crawling over the rocks. He looked like he was looking for shade. He was the only tukwila lizard that I noted in the area, commonly found on these hiking trails.;; Coordinate Uncertainty in Meters: 11868.00000.

GBIFID: 5187690599; Occurrence Remarks: At Joshua Tree National Park. (Metadata w/ specific coordinates did not upload w/ the photos, for some reason.);; Coordinate Uncertainty in Meters: 52530.00000.

GBIFID: 2294648504; Occurrence Remarks: Sauromalus ater;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 1265594476; Occurrence Remarks: Female, found in a crevice;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 1265907380; Occurrence Remarks: Couldnt believe I was able to get so close to this Chuckwalla (Sauromalus ater). This beefy male had just eaten some vegetation and was basking in the heat of the midday sun.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1269543070; Occurrence Remarks: Saw this male basking here on our way out. Coming back, we watched him be joined by a smaller chuckwalla - female, Im guessing? Or maybe a juvenile? Pretty cool behavior to observe.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 1453090163; Occurrence Remarks: Juvenile Chuckwalla approx 8 inches long;; Coordinate Uncertainty in Meters: 28930.00000.

GBIFID: 1272094350; Occurrence Remarks: Seen from across a small canyon in late afternoon, getting toward dusk. Traversed a steep rock cliff before hiding in a crevice.;; Coordinate Uncertainty in Meters: 2073.00000.

GBIFID: 1272106505; Occurrence Remarks: Seen on the Mastodon Peak Trail;; Coordinate Uncertainty in Meters: 55.00000.

GBIFID: 891726162; Occurrence Remarks: A large male chuckwalla with very nice colors and a friendly disposition.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3067922732; Occurrence Remarks: On slope just above Cottonwood Canyon Wash.;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 2574020025; Occurrence Remarks: Looks like I got a boy and a girl.;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 3031962623; Occurrence Remarks: Along the Tahquitz Cyn Trail;; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.705108, -116.265289: : 4/18/2018: Friends of the Desert Mountains: 18 Apr 2018 :

Riverside, California: 33.759149, -116.356156: : 9/14/2017: Friends of the Desert Mountains: 14 Sep 2017 :

Riverside, California: 33.754789, -116.205521: : 9/12/2017: Friends of the Desert Mountains: 12 Sep 2017 :

GBIFID: 2603373281; Occurrence Remarks: Juvenile, approached my feet on trail to eat Cryptantha;; Coordinate Uncertainty in Meters: 28902.00000.

GBIFID: 2603389253; Occurrence Remarks: Female, basking on rock just off trail;; Coordinate Uncertainty in Meters: 28902.00000.

GBIFID: 2610938123; Occurrence Remarks: Scat.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2626588460; Occurrence Remarks: Elevation 550ft +/-.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2626385443; Occurrence Remarks: Elevation 900ft+/-. Shedding in progress.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2626350223; Occurrence Remarks: Elevation 600ft+/-;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2634569777; Occurrence Remarks: Digging;; Coordinate Uncertainty in Meters: 19.00000.

GBIFID: 2814351614; Occurrence Remarks: Observed March 13th, 2016, Bump N Grind trail. It was the first chuckwalla I had ever seen and I didnΓÇÖt know what it was! I was like ΓÇ£whattt is that!?ΓÇ¥ There were two in fact, just could get a pic of the other.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1453457284; Occurrence Remarks: Along Randall Henderson trail, second loop;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 1500317917; Occurrence Remarks: Riverside County, California, US;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3032045780; Occurrence Remarks: Chuckwalla hatchling in Pushwalla canyon, 20 ft from the old rusted truck. I was standing on the trail having a drink of water. Chuckwalla ran under my hiking boot. I lifted my boot and picked him up. He was very cooperative and photogenic. COMPARE 2 arid desert-adapted Lizards, both in the Iguanas and Chuckwallas (Iguanidae) family: Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) Common Chuckwalla (Sauromalus ater) My favorite Desert Iguana (Dipsosaurus dorsalis) observations: Desert Iguana (Dipsosaurus dorsalis) and the subspecies Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Amphibians and Reptiles of California: (only lists the ssp. Northern Desert Iguana) Size: 4 - 5 3/4 inches long from snout to vent (10 - 14.6 cm). Appearance: it is a large lizard with a very long thick tail and a small head with a blunt nose. Scales are small and granular except for a row of enlarged keeled scales on the middle of the back which form a crest which extends to near the end of the tail. Color is pale beige or gray with reddish-brown markings, creating the appearance of a dark background with pale round spots, sometimes forming bands, along with irregular broken lengthwise dark markings. Dark markings form rings around the tail. Underside is pale with reddish or buffy areas on the sides of the belly during breeding season. Male / Female Differences: Males and females are minimally sexually dimorphic. There is almost no visible difference between males and females except that males generally have enlarged femoral pores during the breeding months. Males and females do not differ in snout-vent length, head length, or head width. Juveniles often have a more strongly contrasted pattern than adults. Life History and Behavior: Active in daytime. Often seen on rocks basking in the hot sun. Able to tolerate very high temperatures, higher than any other North American reptile. Frequently active after high temperatures force other lizards to seek shelter. It is a very fast runner. Seeks refuge in burrows, often located at the base of creosote bushes. Hibenates in burrows during the winter. Diet and Feeding: Eats mostly plant material - leaves, flower buds, and flowers. Creosote bush is a staple food. Also eats insects, carrion, fecal pellets. Feeds by climbing branches of creosote bushes and other plants. Reproduction: Breeds from April to July. Female lays a clutch of 3 - 8 eggs from June to August. Habitat: Creosote Bush plant communities, desert flats, scrub, dunes, washes, streambeds, and floodplains. Most common in sandy areas. Occurs in rocky areas with sandy hummocks. Geographical Range: Occurs primarily where Creosote scrub occurs, on the desert sides of Southern California mountiains, and the Eastern Sierra Nevada mountains in the Owens Valley, to the Arizona, Nevada, and Baja California Borders. Amphibians and Reptiles of California: COMPARE TO My favorite Common Chuckwalla (Sauromalus ater) Hatchling: https://www.inaturalist.org/observations/68029395 Adult in Baja California, Mexico: https://www.inaturalist.org/observations/108220643 Common Chuckwalla (Sauromalus ater) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Conservation Status: Sujeta a protecci├│n especial in Mexico. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html Size: 5 - 9 inches long from snout to vent (12.7 - 22.8 cm). It is the second largest lizard native to the United States. (The Gila Monster is larger). (Floridas Green Iguanas are not native to the state.) Appearance: it is a large, flat-bodied lizard with a large rounded belly, and a wide-based blunt-tipped tail. The neck and sides of the body are covered with loose folds of skin. Scales are small and granular. Tail will regenerate if detached. Males have enlarged femoral pores. Color and Pattern: Several color patterns occur. Color can be black, reddish, gray, brown, yellow, or tan. Color changes with age and varies with the color of the habitat. Some individuals have red torsos. The tail and sides are light gray or cream, sometimes reddish. Male / Female Differences: Males have dark, usually black, head, chest, and limbs, with red, black, or yellowish backs. Sometimes the dark coloring is covered with light spots and flecks. Females usually retain some of the juvenile body and tail banding. The body and tail of young chuckwallas are more prominently banded with dark and yellow coloring. Activity: Diurnal. Rock-dwelling, sheltering in rock crevices or under rocks. Rocks, especially large outcrops and boulder piles, are used for basking. Chuckwallas are often seen in the morning basking on a large rock pile. After basking, they leave the rocks to forage for food. Most active from spring through fall, remaining inactive in deep rock crevices during the cold of winter, but may be active all year in warmer areas. Also retreats into rock crevices during extreme heat. Defense: When disturbed, a chukwalla will retreat quickly into a rock crevice, inflating its body with air and using its strong claws and rough skin to tightly wedge itself into the crevice to make extraction difficult. Diet and Feeding: Eats a variety of plant leaves and flowers and fruit, including creosote bush flowers. Occasionally eats insects. Reproduction: Breeds from April to June. Females lay 5 -16 eggs from June to August. Females may only lay eggs every two or three years. Eggs hatch in late September. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html (includes great photos). Irenes Lizards (Sauria Suborder) observations on INaturalist, worldwide: Amphibians and Reptiles of California: (excellent photos and descriptions): https://californiaherps.com Reptiles and Amphibians of California: an INaturalist Project (261+ species): (mine: 40+ species): RASCals (Reptiles & Amphibians of Southern California): an INaturalist Project: https://www.inaturalist.org/projects/rascals Amphibians and Reptiles of the Anza-Borrego Desert Region: A Photographic Field Guide, L. Lee Grismer and Marta S. Grismer, 2024 (excellent photos and descriptions) Reptile Database (worldwide) https://reptile-database.reptarium.cz/ Desert Lizards, by James W. Cornett, 2006 (of the Southwest U.S. Desert) Animal Diversity Web (ADW) is an online database, an encyclopedia of animal natural history, distribution, classification, glossary, and conservation biology: https://animaldiversity.org/ Irenes (aparrot1) Profile Page on INaturalist listing Nature Resources (includes online references with links) for Plants, Birds, Fungi, Lepidoptera, Arachnids, Reptiles, Amphibians, Marine Life, Plant Galls, and more: https://www.inaturalist.org/people/3188668;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3039476565; Occurrence Remarks: A three inch long juvenile/baby;; Coordinate Uncertainty in Meters: 188.00000.

GBIFID: 3070537568; Occurrence Remarks: Common Chuckwalla hatchling in Pushwalla Canyon in the Mojave/Colorado Desert, 20 ft from the old rusted truck. I was standing on the trail having a drink of water. Chuckwalla ran under my hiking boot. I lifted my boot and picked him/her up. He/she was very cooperative and photogenic. COMPARE 2 arid desert-adapted Lizards, both in the Iguanas and Chuckwallas (Iguanidae) family: Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) Common Chuckwalla (Sauromalus ater) My favorite Desert Iguana (Dipsosaurus dorsalis) observations: Desert Iguana (Dipsosaurus dorsalis) and the subspecies Northern Desert Iguana (Dipsosaurus dorsalis dorsalis) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Amphibians and Reptiles of California: (only lists the ssp. Northern Desert Iguana) Size: 4 - 5 3/4 inches long from snout to vent (10 - 14.6 cm). Appearance: it is a large lizard with a very long thick tail and a small head with a blunt nose. Scales are small and granular except for a row of enlarged keeled scales on the middle of the back which form a crest which extends to near the end of the tail. Color is pale beige or gray with reddish-brown markings, creating the appearance of a dark background with pale round spots, sometimes forming bands, along with irregular broken lengthwise dark markings. Dark markings form rings around the tail. Underside is pale with reddish or buffy areas on the sides of the belly during breeding season. Male / Female Differences: Males and females are minimally sexually dimorphic. There is almost no visible difference between males and females except that males generally have enlarged femoral pores during the breeding months. Males and females do not differ in snout-vent length, head length, or head width. Juveniles often have a more strongly contrasted pattern than adults. Life History and Behavior: Active in daytime. Often seen on rocks basking in the hot sun. Able to tolerate very high temperatures, higher than any other North American reptile. Frequently active after high temperatures force other lizards to seek shelter. It is a very fast runner. Seeks refuge in burrows, often located at the base of creosote bushes. Hibenates in burrows during the winter. Diet and Feeding: Eats mostly plant material - leaves, flower buds, and flowers. Creosote bush is a staple food. Also eats insects, carrion, fecal pellets. Feeds by climbing branches of creosote bushes and other plants. Reproduction: Breeds from April to July. Female lays a clutch of 3 - 8 eggs from June to August. Habitat: Creosote Bush plant communities, desert flats, scrub, dunes, washes, streambeds, and floodplains. Most common in sandy areas. Occurs in rocky areas with sandy hummocks. Geographical Range: Occurs primarily where Creosote scrub occurs, on the desert sides of Southern California mountiains, and the Eastern Sierra Nevada mountains in the Owens Valley, to the Arizona, Nevada, and Baja California Borders. Amphibians and Reptiles of California: COMPARE TO My favorite Common Chuckwalla (Sauromalus ater) Hatchling: https://www.inaturalist.org/observations/68029395 Adult in Baja California, Mexico: https://www.inaturalist.org/observations/108220643 Common Chuckwalla (Sauromalus ater) is an arid desert-adapted Lizard in the Iguanas and Chuckwallas (Iguanidae) family. Conservation Status: Sujeta a protecci├│n especial in Mexico. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html Size: 5 - 9 inches long from snout to vent (12.7 - 22.8 cm). It is the second largest lizard native to the United States. (The Gila Monster is larger). (Floridas Green Iguanas are not native to the state.) Appearance: it is a large, flat-bodied lizard with a large rounded belly, and a wide-based blunt-tipped tail. The neck and sides of the body are covered with loose folds of skin. Scales are small and granular. Tail will regenerate if detached. Males have enlarged femoral pores. Color and Pattern: Several color patterns occur. Color can be black, reddish, gray, brown, yellow, or tan. Color changes with age and varies with the color of the habitat. Some individuals have red torsos. The tail and sides are light gray or cream, sometimes reddish. Male / Female Differences: Males have dark, usually black, head, chest, and limbs, with red, black, or yellowish backs. Sometimes the dark coloring is covered with light spots and flecks. Females usually retain some of the juvenile body and tail banding. The body and tail of young chuckwallas are more prominently banded with dark and yellow coloring. Activity: Diurnal. Rock-dwelling, sheltering in rock crevices or under rocks. Rocks, especially large outcrops and boulder piles, are used for basking. Chuckwallas are often seen in the morning basking on a large rock pile. After basking, they leave the rocks to forage for food. Most active from spring through fall, remaining inactive in deep rock crevices during the cold of winter, but may be active all year in warmer areas. Also retreats into rock crevices during extreme heat. Defense: When disturbed, a chukwalla will retreat quickly into a rock crevice, inflating its body with air and using its strong claws and rough skin to tightly wedge itself into the crevice to make extraction difficult. Diet and Feeding: Eats a variety of plant leaves and flowers and fruit, including creosote bush flowers. Occasionally eats insects. Reproduction: Breeds from April to June. Females lay 5 -16 eggs from June to August. Females may only lay eggs every two or three years. Eggs hatch in late September. Amphibians and Reptiles of California: http://www.californiaherps.com/lizards/pages/s.ater.html (includes great photos). Irenes Lizards (Sauria Suborder) observations on INaturalist, worldwide: Amphibians and Reptiles of California: (excellent photos and descriptions): https://californiaherps.com Reptiles and Amphibians of California: an INaturalist Project (261+ species): (mine: 40+ species): RASCals (Reptiles & Amphibians of Southern California): an INaturalist Project: https://www.inaturalist.org/projects/rascals Amphibians and Reptiles of the Anza-Borrego Desert Region: A Photographic Field Guide, L. Lee Grismer and Marta S. Grismer, 2024 (excellent photos and descriptions) Reptile Database (worldwide) https://reptile-database.reptarium.cz/ Desert Lizards, by James W. Cornett, 2006 (of the Southwest U.S. Desert) Animal Diversity Web (ADW) is an online database, an encyclopedia of animal natural history, distribution, classification, glossary, and conservation biology: https://animaldiversity.org/ Irenes (aparrot1) Profile Page on INaturalist listing Nature Resources (includes online references with links) for Plants, Birds, Fungi, Lepidoptera, Arachnids, Reptiles, Amphibians, Marine Life, Plant Galls, and more: https://www.inaturalist.org/people/3188668;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3090678306; Occurrence Remarks: Juvenile. 4 inches in length. Didnt move from location in my presence or as I walked away. I didnt disturb further. Elevation 900ft.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3112542789; Occurrence Remarks: 104 F, light breeze, very hot day, little shade;; Coordinate Uncertainty in Meters: 2753.00000.

GBIFID: 3112853666; Occurrence Remarks: Difficult to get a photo through the window screen. First chuckwalla seen on our property;; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.778649, -116.265754: : 6/24/2017: Friends of the Desert Mountains: 24 Jun 2017 :

Riverside, California: 33.792056, -116.356261: : 7/7/2017: Friends of the Desert Mountains: 7 Jul 2017 :

Riverside, California: 33.698092, -116.255219: : 7/8/2017: Friends of the Desert Mountains: 8 Jul 2017 :

GBIFID: 3118512708; Occurrence Remarks: Juvenile. 4 inches long +/-;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3118514681; Occurrence Remarks: Rush Milkweed = Chuckwallas.;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 3124590870; Occurrence Remarks: A very hungry lizard.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3124546165; Occurrence Remarks: Munching on some Encelia.;; Coordinate Uncertainty in Meters: 466.00000.

GBIFID: 3355097230; Occurrence Remarks: 102F air temperature;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3355008226; Occurrence Remarks: 102F air temperature;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3355781430; Occurrence Remarks: Crossed the road!;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 1831170366; Occurrence Remarks: Large male, appeared to be about 1 foot long.;; Coordinate Uncertainty in Meters: 52530.00000.

GBIFID: 3415927976; Occurrence Remarks: Chuckwalla courting his lady friend right outside our house.;; Coordinate Uncertainty in Meters: 181.00000.

GBIFID: 3399282877; Occurrence Remarks: Near the very top of Mastodon Peak.;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 3399347499; Occurrence Remarks: Elevation 1300ft;; Coordinate Uncertainty in Meters: 0.11000.

Maricopa, Arizona: 33.695328, -112.178872: : 8/20/2025: jphett: 20 Aug 2025 ; Coordinate Uncertainty in Meters: 9.00000.

Occurrence Remarks: ran across the middle of the trail at 96 F; Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.69427, -112.177215: : 8/21/2025: jphett: 21 Aug 2025 ; Coordinate Uncertainty in Meters: 8.00000.

Maricopa, Arizona: 33.694988, -112.176863: : 8/21/2025: jphett: 21 Aug 2025 ; Coordinate Uncertainty in Meters: 23.00000.

Occurrence Remarks: same individual as one i caught on 8/11/25 and 7/10/25; Coordinate Uncertainty in Meters: 4.00000.

Maricopa, Arizona: 33.694819, -112.178572: : 9/3/2025: jphett: 3 Sep 2025 ; Coordinate Uncertainty in Meters: 12.00000.

Occurrence Remarks: same one caught on 8/21/25; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 33.716683, -116.298912: : 7/21/2026: Sue Shigenaga: 21 Jul 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 34.000321, -116.059508: : 3/19/2026: Chris Thawley: 19 Mar 2026 ; Coordinate Uncertainty in Meters: 35.00000.

Riverside, California: 33.987412, -116.014542: : 3/27/2026: tmurtaugh01: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 34.026608, -116.142442: : 3/27/2026: colleenieweenie: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.986375, -116.0157: : 8/24/2025: Angel Guzman: 24 Aug 2025 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.02658, -116.14476: : 11/5/2025: Pete Schwartz: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 34.027128, -116.143281: : 11/5/2025: Alison Kreager: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.026561, -116.144844: : 11/5/2025: Alison Kreager: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 34.015158, -116.173272: : 4/3/2026: cooncooncar: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Occurrence Remarks: Observed at Joshua Tree National Park Hidden Valley Trail, CA.; Coordinate Uncertainty in Meters: 53.00000.

Riverside, California: 33.996866, -116.063432: : 3/15/2026: Honoria: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 262.00000.

Riverside, California: 34.014839, -116.173477: : 9/11/2025: Valentina: 11 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.018569, -116.074339: : 4/5/2026: cow: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4165910503; Occurrence Remarks: Photo taken by Terry Morongo Valley resident;; Coordinate Uncertainty in Meters: 31.00000.

San Bernardino, California: 34.062867, -116.226013: : 4/2/2026: vincesayshi: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.112736, -116.107933: : 4/29/2026: desertjules: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.114232, -116.108215: : 4/29/2026: Cameron W Barrows: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114132, -116.108322: : 4/29/2026: Cameron W Barrows: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.113155, -116.10788: : 4/29/2026: Cameron W Barrows: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114361, -116.295039: : 4/8/2023: Cameron W Barrows: 8 Apr 2023 :

San Bernardino, California: 34.114243, -116.294286: : 4/8/2023: Cameron W Barrows: 8 Apr 2023 :

San Bernardino, California: 34.116154, -116.292597: : 4/8/2023: Cameron W Barrows: 8 Apr 2023 :

San Bernardino, California: 34.059581, -116.226783: : 5/3/2025: kaitsabbott: 3 May 2025 ; Coordinate Uncertainty in Meters: 14.00000.

Riverside, California: 33.997455, -116.061011: : 5/3/2026: alexjmingolla: 3 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.995475, -116.066719: : 5/25/2026: nehavijay: 25 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.960354, -116.017994: : 3/8/2026: Andrea Carpio: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.960535, -116.018089: : 3/8/2026: Andrea Carpio: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.961817, -116.017847: : 3/8/2026: Andrea Carpio: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 61.00000.

San Bernardino, California: 34.065894, -116.043166: : 3/8/2026: Andrea Carpio: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.013736, -116.168495: : 5/24/2026: renee01gu: 24 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 34.007769, -116.060044: : 4/20/2026: Amanda Elliott: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.108699, -116.10719: : 5/17/2026: Amanda Elliott: 17 May 2026 ; Coordinate Uncertainty in Meters: 64.00000.

Riverside, California: 33.985856, -116.015541: : 3/23/2026: barrett_bauer: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 10.00000.

San Bernardino, California: 34.059342, -116.22673: : 3/23/2026: cferen13: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.014359, -116.172897: : 4/3/2026: adilla43: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 13.00000.

San Bernardino, California: 34.086381, -116.238604: : 4/11/2026: talonhilligas: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 614.00000.

San Bernardino, California: 34.071374, -116.239001: : 4/8/2026: naturephotosuze: 8 Apr 2026 :
Occurrence Remarks: Joshua Tree; Coordinate Uncertainty in Meters: 1.00000.

San Bernardino, California: 34.069743, -116.239365: : 4/8/2026: naturephotosuze: 8 Apr 2026 :
Occurrence Remarks: Joshua Tree; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.070221, -116.239007: : 4/8/2026: naturephotosuze: 8 Apr 2026 :
Occurrence Remarks: Joshua Tree; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.114479, -116.294246: : 3/28/2026: cara-mia: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.985857, -116.015707: : 4/12/2026: Pedro Ars├⌐nio: 12 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.980572, -116.657455: : 4/15/2026: Rochelle Watson: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 13.00000.

San Bernardino, California: 34.083625, -116.139764: : 4/1/2026: ackowert: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 11.00000.

Occurrence Remarks: Seen on the Joshua Tree National Spring Butterfly Count.; Coordinate Uncertainty in Meters: 25.00000.

Occurrence Remarks: It was not harmed and immediately released on-site after photo; Coordinate Uncertainty in Meters: 260.00000.

San Bernardino, California: 34.083014, -116.249838: : 4/18/2026: grant_20: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 549.00000.

Riverside, California: 34.009981, -116.060439: : 4/19/2026: haydendavis1: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.0149, -116.173675: : 4/19/2026: timwendyd: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.013997, -116.172195: : 4/19/2026: Patricia Vasquez: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.02658, -116.144737: : 11/5/2025: Cameron W Barrows: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 34.026572, -116.144767: : 11/5/2025: Jan Thompson: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.026589, -116.1447: : 11/5/2025: jdogstevens: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.11546, -116.105912: : 11/12/2025: Cameron W Barrows: 12 Nov 2025 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.115517, -116.105842: : 11/12/2025: Jan Thompson: 12 Nov 2025 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.082669, -116.139644: : 5/2/2026: bstupak85: 2 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.995135, -116.062605: : 4/18/2026: Kate: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.986563, -116.015603: : 5/16/2026: Bob Gorcik: 16 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.094733, -116.159058: : 5/22/2026: actualspiders: 22 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.094906, -116.158036: : 5/22/2026: actualspiders: 22 May 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.094322, -116.157439: : 5/22/2026: actualspiders: 22 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 34.028567, -116.143857: : 5/15/2026: jschweg: 15 May 2026 ; Coordinate Uncertainty in Meters: 152.00000.

Riverside, California: 34.014408, -116.168717: : 5/23/2026: Jonathan Huie: 23 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.083856, -116.139596: : 5/23/2026: jmkent: 23 May 2026 ; Coordinate Uncertainty in Meters: 75.00000.

Riverside, California: 33.989367, -116.014865: : 5/24/2026: Adrian Lozano: 24 May 2026 ; Coordinate Uncertainty in Meters: 1964.00000.

San Bernardino, California: 34.060958, -116.076393: : 5/25/2026: rubysiehl: 25 May 2026 ; Coordinate Uncertainty in Meters: 28874.00000.

Riverside, California: 33.997455, -116.061011: : 5/3/2026: Kiana Kelley: 3 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.997447, -116.061019: : 5/3/2026: Kiana Kelley: 3 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.000058, -116.059364: : 5/24/2026: birdthusiast: 24 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.995003, -116.06208: : 5/27/2026: Ashley Adkins: 27 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.014867, -116.173692: : 5/27/2026: kiraburch: 27 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.024131, -116.177217: : 3/27/2026: cjones5599: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 15.00000.

San Bernardino, California: 34.092389, -116.157167: : 2/14/2026: hrosestreicher: 14 Feb 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Riverside, California: 34.001664, -116.050469: : 3/22/2026: Sam Johnson: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 622.00000.

San Bernardino, California: 34.11415, -116.29563: : 4/9/2023: sototallywildlife: 9 Apr 2023 :

GBIFID: 4127373870; Occurrence Remarks: Joshua tree lizard;; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.116178, -116.106653: : 11/12/2025: Pete Schwartz: 12 Nov 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.108937, -116.107458: : 5/8/2023: Cameron W Barrows: 8 May 2023 :

San Bernardino, California: 34.106934, -116.106207: : 5/8/2023: Cameron W Barrows: 8 May 2023 :

San Bernardino, California: 34.107593, -116.10694: : 5/8/2023: Cameron W Barrows: 8 May 2023 :

GBIFID: 4091943756; Occurrence Remarks: First warm day after protected series of cooler-than-normal days.;; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.993405, -116.067292: : 2/23/2026: Sarah Wilhelm: 23 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 34.014594, -116.17347: : 2/25/2026: Aron Gamble: 25 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.0041, -116.121072: : 2/26/2026: Leah Gardner: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.958381, -115.911568: : 2/26/2026: jpompy: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 7790.00000.

Riverside, California: 34.016281, -116.172406: : 2/27/2026: Joshua Phillips: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.015168, -116.173553: : 2/27/2026: Jason Lyon: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: 2 adults; Coordinate Uncertainty in Meters: 22.00000.

Riverside, California: 33.951779, -116.054036: : 2/28/2026: Lese Majeste: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 28902.00000.

Riverside, California: 34.01485, -116.173492: : 2/25/2026: korseeth: 25 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.084972, -116.249687: : 3/1/2026: anushapb: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.096847, -116.160569: : 2/27/2026: rhizomatically: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.047761, -116.206695: : 3/2/2026: jeb717: 2 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.108772, -116.10733: : 3/7/2026: Megan Berberich: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.094128, -116.168397: : 3/10/2026: mkvillafania: 10 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.997763, -116.061089: : 3/10/2026: permafrogs: 10 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.000728, -116.058419: : 3/7/2026: emmamaria112: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.037922, -116.03401: : 3/11/2026: saraheb1230: 11 Mar 2026 ; Coordinate Uncertainty in Meters: 1340.00000.

Riverside, California: 34.012165, -116.059418: : 3/11/2026: happyontheat01: 11 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.944978, -115.829786: : 3/11/2026: naturedocentintraining: 11 Mar 2026 ; Coordinate Uncertainty in Meters: 30694.00000.

San Bernardino, California: 34.095178, -116.157708: : 3/15/2026: sarahwitt: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 34.018122, -116.174144: : 3/14/2026: Elijah S.: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.07179, -116.240198: : 3/15/2026: AAM: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.99493, -116.060095: : 3/14/2026: alyssamd: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 255.00000.

Riverside, California: 33.935405, -115.963913: : 4/6/2026: David LaMagna: 6 Apr 2026 ; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 34.04248, -116.069985: : 5/13/2026: Cameron W Barrows: 13 May 2026 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.042414, -116.069961: : 5/13/2026: Pete Schwartz: 13 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.047481, -116.067489: : 5/13/2026: Pete Schwartz: 13 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.986763, -116.016228: : 3/8/2026: josephrlee: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.107011, -116.10633: : 4/7/2026: neil_tsutsui: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.114483, -116.295714: : 3/28/2026: Pete Schwartz: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114414, -116.295792: : 3/28/2026: Pete Schwartz: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3925395625; Occurrence Remarks: Seen near White Tank campground, Arch Rock area in Joshua Tree National Park. Appears to be molting and have small insects around face.;; Coordinate Uncertainty in Meters: 43.00000.

GBIFID: 1848804546; Occurrence Remarks: Sauromalus ater 03 Jun 2018 CA, SBE Co., 49 Palms Oasis trail;; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.027386, -116.14338: : 4/7/2026: Andreas Waldstein: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.107139, -116.1063: : 4/29/2026: desertjules: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.109356, -116.107308: : 4/29/2026: desertjules: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.109342, -116.107278: : 4/29/2026: Alison Kreager: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

San Bernardino, California: 34.112731, -116.107917: : 4/29/2026: Alison Kreager: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.113197, -116.107911: : 4/29/2026: Alison Kreager: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 10.00000.

San Bernardino, California: 34.107806, -116.107217: : 4/29/2026: Pete Schwartz: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.109147, -116.107314: : 4/29/2026: Pete Schwartz: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.113089, -116.108011: : 4/29/2026: Pete Schwartz: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: Hatchling; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.109361, -116.107161: : 4/29/2026: Jan Thompson: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.994063, -116.062055: : 2/28/2026: brownfence: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 251.00000.

Riverside, California: 34.01403, -116.172234: : 5/1/2026: jolillian88: 1 May 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.079064, -116.236603: : 5/1/2026: Alison Kreager: 1 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.077106, -116.215936: : 5/1/2026: Alison Kreager: 1 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 34.077197, -116.216056: : 5/1/2026: Pete Schwartz: 1 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.064311, -116.212281: : 5/1/2026: Alison Kreager: 1 May 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.107816, -116.332453: : 5/2/2026: Ally Coconis: 2 May 2026 ; Coordinate Uncertainty in Meters: 67.00000.

Riverside, California: 33.98645, -116.015817: : 5/2/2026: pleiotrope: 2 May 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 34.0107, -116.056175: : 5/2/2026: annas-element: 2 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.004544, -116.057675: : 5/2/2026: Augie Brinker: 2 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.107781, -116.107192: : 4/29/2026: Jan Thompson: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 34.00681, -116.057409: : 5/1/2026: alexb0000: 1 May 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Occurrence Remarks: Very chill with people, much less chill with the hawk that passed overhead. https://youtu.be/8mL054JwLYg; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.012198, -116.059442: : 5/1/2026: alexb0000: 1 May 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.012349, -116.059257: : 5/1/2026: alexb0000: 1 May 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Occurrence Remarks: Way up on a hilltop; Coordinate Uncertainty in Meters: 30.00000.

Occurrence Remarks: I watched this pair of chuckwallas courting for around 40 minutes. They never mated, the female seemed to play a little too hard to get and caused the male to lose interest. Female - https://www.inaturalist.org/observations/358216509 https://youtu.be/X8s559vIn1E; Coordinate Uncertainty in Meters: 10.00000.

Occurrence Remarks: I watched this pair of chuckwallas courting for around 40 minutes. They never mated, the female seemed to play a little too hard to get and caused the male to lose interest. Male - https://www.inaturalist.org/observations/358216507 https://youtu.be/X8s559vIn1E; Coordinate Uncertainty in Meters: 10.00000.

Occurrence Remarks: Barely made it across the road. https://youtu.be/DBvjW5XcmDA; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 33.986881, -116.016327: : 3/30/2026: plutoisaplanet09: 30 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.077045, -116.215805: : 5/1/2026: Jan Thompson: 1 May 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 34.027203, -116.143364: : 5/10/2026: jonvasq: 10 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.068872, -116.049279: : 10/31/2025: Andrea Carpio: 31 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.06866, -116.049099: : 10/31/2025: Andrea Carpio: 31 Oct 2025 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.066946, -116.077038: : 1/18/2026: Sydney Rose-Hild Smith: 18 Jan 2026 ; Coordinate Uncertainty in Meters: 43757.00000.

Riverside, California: 33.996429, -116.065739: : 2/3/2026: smeckert: 3 Feb 2026 ; Coordinate Uncertainty in Meters: 31.00000.

San Bernardino, California: 34.076539, -116.242843: : 2/7/2026: morebuckwheatplease: 7 Feb 2026 ; Coordinate Uncertainty in Meters: 2845.00000.

San Bernardino, California: 34.108098, -116.10751: : 2/8/2026: Ryan: 8 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.018102, -116.164464: : 2/7/2026: paytonco: 7 Feb 2026 ; Coordinate Uncertainty in Meters: 41.00000.

Riverside, California: 34.013012, -116.169239: : 9/26/2025: Lina: 26 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114417, -116.295875: : 3/28/2026: chuckster12: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 34.007716, -116.057221: : 3/30/2026: goyacho: 30 Mar 2026 ; Coordinate Uncertainty in Meters: 123.00000.

San Bernardino, California: 34.114597, -116.294188: : 3/28/2026: chuckster12: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.112745, -116.107903: : 4/29/2026: Cathy Wiley: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.093731, -116.160478: : 5/2/2026: alicelawless: 2 May 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 34.010722, -116.056189: : 5/2/2026: Augie Brinker: 2 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.079753, -116.237882: : 5/1/2026: Cameron W Barrows: 1 May 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.078785, -116.235945: : 5/1/2026: Cameron W Barrows: 1 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.109392, -116.1072: : 4/29/2026: Cathy Wiley: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.9977, -116.061067: : 4/11/2026: Justin Wright: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.008099, -116.060104: : 3/21/2026: troyc5998: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.059281, -116.226783: : 4/11/2026: treepuddlelover23: 11 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.114512, -116.294303: : 3/28/2026: Cameron W Barrows: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114413, -116.295905: : 3/28/2026: Cameron W Barrows: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.043439, -116.15054: : 3/21/2026: Dayne: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 28874.00000.

San Bernardino, California: 34.115728, -116.106126: : 5/28/2025: csiegert: 28 May 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.986542, -116.015664: : 9/20/2025: Emily white: 20 Sep 2025 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.094685, -116.168446: : 9/25/2025: mroska: 25 Sep 2025 ; Coordinate Uncertainty in Meters: 20.00000.

Riverside, California: 33.987163, -116.015617: : 5/7/2026: epfodeb: 7 May 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.987203, -116.015664: : 5/7/2026: epfodeb: 7 May 2026 ; Coordinate Uncertainty in Meters: 12.00000.

San Bernardino, California: 34.042481, -116.069922: : 5/13/2026: Sue Shigenaga: 13 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.042478, -116.069947: : 5/13/2026: Jan Thompson: 13 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.042433, -116.070039: : 5/13/2026: Rochelle Watson: 13 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 34.018242, -116.169945: : 5/8/2026: Isaiah Woodard: 8 May 2026 ; Coordinate Uncertainty in Meters: 219.00000.

Riverside, California: 33.986572, -116.015581: : 5/17/2026: poppyploidy: 17 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.014867, -116.173797: : 5/17/2026: hpriest: 17 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Occurrence Remarks: Two individuals; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.998903, -116.060045: : 5/10/2026: Daniel Branch: 10 May 2026 ; Coordinate Uncertainty in Meters: 1.00000.

Riverside, California: 34.02007, -116.16558: : 3/25/2026: rianjfitz: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 137.00000.

Riverside, California: 33.984837, -116.01625: : 3/9/2026: ssummo58: 9 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.030919, -116.145728: : 3/16/2026: janice modin: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 34.006957, -116.059611: : 3/16/2026: hlcally: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.994903, -116.066344: : 3/21/2026: braydoe: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 34.000628, -116.052127: : 3/22/2026: msedla: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.076728, -116.21557: : 3/18/2026: ajackman291: 18 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 34.014542, -116.16874: : 3/23/2026: Craig Martin: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.027067, -116.143472: : 3/25/2026: elant: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.014163, -116.172852: : 3/23/2026: Craig Martin: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.026489, -116.142544: : 3/24/2026: jtnolan: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.028175, -116.143678: : 3/27/2026: namsivakumar: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.114501, -116.294248: : 3/28/2026: msedla: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.114433, -116.294372: : 3/28/2026: Pete Schwartz: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114494, -116.295831: : 3/28/2026: Alison Kreager: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.114486, -116.29425: : 3/28/2026: Alison Kreager: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 13.00000.

San Bernardino, California: 34.114503, -116.294214: : 3/28/2026: Augie Brinker: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114478, -116.295828: : 3/28/2026: Augie Brinker: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.005074, -116.060425: : 3/27/2026: valarrya: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 195.00000.

San Bernardino, California: 34.110521, -116.106998: : 3/28/2026: valarrya: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 418.00000.

San Bernardino, California: 34.114403, -116.296005: : 3/28/2026: sidetracker: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.114514, -116.29418: : 3/28/2026: sidetracker: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 34.000133, -116.059478: : 3/24/2026: miffyreal123: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 19.00000.

Riverside, California: 34.021453, -116.177308: : 3/29/2026: James Pinto: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 39.00000.

San Bernardino, California: 34.09285, -116.158265: : 3/25/2026: Chris Mulligan: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.092865, -116.158446: : 3/26/2026: Chris Mulligan: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.08321, -116.223841: : 3/29/2026: b1sfgal: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 4763.00000.

San Bernardino, California: 34.115505, -116.106445: : 4/1/2026: jacie805: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.99773, -116.060722: : 3/25/2026: skunkchunk101: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Riverside, California: 34.032338, -116.197348: : 4/2/2026: vincesayshi: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 6763.00000.

San Bernardino, California: 34.071895, -116.240075: : 4/1/2026: lotsaplants: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 11.00000.

Riverside, California: 33.995163, -116.066428: : 4/6/2026: Travis Kurtz: 6 Apr 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 34.014225, -116.172683: : 4/6/2026: Travis Kurtz: 6 Apr 2026 ; Coordinate Uncertainty in Meters: 89.00000.

Riverside, California: 33.98442, -115.691719: : 4/5/2026: anisomorpha: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.0855, -116.238738: : 4/7/2026: Leo Skye: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

San Bernardino, California: 34.075164, -116.214242: : 4/7/2026: Leo Skye: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.087622, -116.232917: : 4/7/2026: Leo Skye: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 34.110905, -116.106836: : 4/7/2026: jenniferofthemeadow: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.998333, -116.060617: : 4/7/2026: David LaMagna: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.116556, -116.106872: : 4/7/2026: neil_tsutsui: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.015263, -116.171669: : 4/9/2026: davejohnston: 9 Apr 2026 ; Coordinate Uncertainty in Meters: 165.00000.

Riverside, California: 34.028237, -116.143723: : 3/22/2026: Craig Martin: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.997429, -116.062218: : 4/5/2026: Maridean Haydon: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.114539, -116.294236: : 3/28/2026: cherylmorgan: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.11065, -116.106788: : 4/10/2026: clarksnutcracker_limberpine_shipper: 10 Apr 2026 :
Occurrence Remarks: You can just barely see him sandwiched between the rocks. Leg and belly partially visible.; Coordinate Uncertainty in Meters: 458.00000.

Occurrence Remarks: Joshua Tree One of a pair--this guy was sitting about 12 feet away from his mate; Coordinate Uncertainty in Meters: 2.00000.

Occurrence Remarks: Joshua Tree One of at least 6 seen; Coordinate Uncertainty in Meters: 2.00000.

Occurrence Remarks: Joshua Tree The female of the pair, sitting about 12 feet away from the male; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Joshua Tree One of three seen; Coordinate Uncertainty in Meters: 2.00000.

Occurrence Remarks: Joshua Tree I watched this female come out of a burrow and crawl up these rocks. She was briefly eating two different plants as shown in the photos. Unfortunately, theyre far away but it was fun to watch her; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.065825, -116.042985: : 3/24/2026: Minou Nowrousian: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 72.00000.

San Bernardino, California: 34.067489, -116.045596: : 3/24/2026: Minou Nowrousian: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 22.00000.

San Bernardino, California: 34.114478, -116.295997: : 3/28/2026: fonxo: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.114086, -116.295563: : 3/28/2026: fonxo: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.995417, -116.058806: : 5/17/2025: Zac Peterson: 17 May 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.059197, -116.227163: : 4/21/2025: kg143: 21 Apr 2025 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.045856, -116.20588: : 6/7/2026: loraxspotting: 7 Jun 2026

San Bernardino, California: 34.046092, -116.20572: : 6/7/2026: loraxspotting: 7 Jun 2026

Riverside, California: 33.997697, -116.059464: : 6/6/2026: gbeck16: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Habitat: Rocky outcrops within the Mojave desert; Coordinate Uncertainty in Meters: 39.00000.

Riverside, California: 34.02698, -116.146795: : 6/11/2026: Ally Coconis: 11 Jun 2026 ; Coordinate Uncertainty in Meters: 24.00000.

Riverside, California: 34.014398, -116.17304: : 4/8/2026: PSM: 8 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Riverside, California: 34.025815, -116.141111: : 4/3/2026: tomas_kay: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 488.00000.

Riverside, California: 34.015853, -116.172333: : 7/6/2026: rthomas52785: 6 Jul 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 33.993053, -116.067619: : 6/18/2026: Danner Chartier: 18 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.994983, -116.066405: : 6/18/2026: Danner Chartier: 18 Jun 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.993725, -116.066544: : 6/18/2026: Danner Chartier: 18 Jun 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.014675, -116.173112: : 6/26/2026: devonlp: 26 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.069039, -116.239617: : 6/29/2026: mjc23htx: 29 Jun 2026 ; Coordinate Uncertainty in Meters: 18.00000.

Riverside, California: 34.014375, -116.173758: : 4/7/2026: David LaMagna: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 33.998122, -116.059008: : 9/29/2025: Josh: 29 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.078918, -116.232137: : 10/10/2025: Cameron W Barrows: 10 Oct 2025 ; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.079552, -116.237533: : 10/10/2025: quandary: 10 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.989502, -116.022931: : 3/16/2026: Michelle: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 194.00000.

San Bernardino, California: 34.114474, -116.1082: : 11/12/2025: Alison Kreager: 12 Nov 2025 ; Coordinate Uncertainty in Meters: 1.00000.

Riverside, California: 34.015962, -116.172335: : 3/23/2026: deathcap: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 11.00000.

Riverside, California: 34.008317, -116.060286: : 4/7/2026: jamiecatchfly: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 33.98652, -116.015594: : 3/20/2026: Madison: 20 Mar 2026 ; Coordinate Uncertainty in Meters: 11.00000.

San Bernardino, California: 34.062867, -116.226013: : 4/2/2026: aikobee: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 1837082880; Occurrence Remarks: Gewone chuckwalla;; Coordinate Uncertainty in Meters: 286.00000.

GBIFID: 3468742685; Occurrence Remarks: Juvenile, spotted by Alyssa, North of DHS;; Coordinate Uncertainty in Meters: 28874.00000.

GBIFID: 3759688832; Occurrence Remarks: Barker Dam area of Joshua Tree NP Could this be a female?;; Coordinate Uncertainty in Meters: 23894.00000.

GBIFID: 3760337000; Occurrence Remarks: Joshua Tree National Park, on the Hidden Valley loop. Same lizard in all three photos.;; Coordinate Uncertainty in Meters: 61.00000.

GBIFID: 4936228978; Occurrence Remarks: Joshua Tree;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1838398629; Occurrence Remarks: San Bernardino County, California, US Temps in the low 70s so I was surprised to see this species out.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 891092899; Occurrence Remarks: Saw many Chuckwallas. Much easier to photograph here than anywhere Ive ever been.;; Coordinate Uncertainty in Meters: 4386.00000.

GBIFID: 1839229635; Occurrence Remarks: Juveniles are adorable.;; Coordinate Uncertainty in Meters: 1.11000.

Riverside, California: 33.952828, -116.435955: : 4/25/2018: Sendy Hern├índez Orellana Barrows: 25 Apr 2018 :

GBIFID: 3802557625; Occurrence Remarks: Was very thin and unhealthy looking. Allowed me to get unusually close;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 3802649586; Occurrence Remarks: was relatively tame;; Coordinate Uncertainty in Meters: 8.00000.

Riverside, California: 33.987755, -116.014297: : 7/2/2026: avadraper11: 2 Jul 2026 ; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 3874148961; Occurrence Remarks: Little lizard friend in the Mohave summer sun. Found the white tail interesting. Shot on a vintage digital camera.;; Coordinate Uncertainty in Meters: 199.00000.

GBIFID: 1848804977; Occurrence Remarks: Sauromalus ater 03 Jun 2018 CA, SBE Co., 49 Palms Oasis trail;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1848804903; Occurrence Remarks: Sauromalus ater 03 Jun 2018 CA, SBE Co., 49 Palms Oasis trail;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3902426720; Occurrence Remarks: After a monsoon.;; Coordinate Uncertainty in Meters: 704.00000.

GBIFID: 1088927317; Occurrence Remarks: San Bernardino County, California, US;; Coordinate Uncertainty in Meters: 96.00000.

GBIFID: 3915596162; Occurrence Remarks: Saw this adult male chuckwalla basking before a monsoon.;; Coordinate Uncertainty in Meters: 1241.00000.

GBIFID: 3925201574; Occurrence Remarks: Close-up of face.;; Coordinate Uncertainty in Meters: 58.00000.

GBIFID: 3067819402; Occurrence Remarks: On rock near Hidden Valley Trail.;; Coordinate Uncertainty in Meters: 42.00000.

GBIFID: 1890059024; Occurrence Remarks: ~50ft high up a boulder;; Coordinate Uncertainty in Meters: 1798.00000.

GBIFID: 4091936801; Occurrence Remarks: First warm day after protracted period of cooler-than-normal days. Confident specimen. Moved all over the rock. Not shy.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4096567753; Occurrence Remarks: Looked like a piece of charcoal, but could have been a chuckwalla - upon closer inspection, chuckwalla!;; Coordinate Uncertainty in Meters: 104.00000.

GBIFID: 1898838175; Occurrence Remarks: A juvenile!;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4120952759; Occurrence Remarks: This observation is for the darker colored lizard;; Coordinate Uncertainty in Meters: 71.00000.

GBIFID: 4121409743; Occurrence Remarks: This observation is for the lighter colored lizard;; Coordinate Uncertainty in Meters: 71.00000.

Riverside, California: 33.988917, -116.134181: : 4/17/2021: rufescentbewilderment: 17 Apr 2021 :

GBIFID: 4936102773; Occurrence Remarks: Joshua Tree;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4067294334; Occurrence Remarks: Chuckwalla;; Coordinate Uncertainty in Meters: 8334.00000.

San Bernardino, California: 34.113746, -116.289181: : 3/28/2026: Laurence Seaton: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 4597540480; Occurrence Remarks: Covered in what appears to be sand flies?;; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.089475, -116.206222: : 3/24/2024: Kenzie Anderson-Bell: 24 Mar 2024 :
GBIFID: 4606645504; Occurrence Remarks: A chuckwalla tail leftover from a loggerhead shrike kill on yucca;; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.104278, -116.18438: : 4/7/2024: Kenzie Anderson-Bell: 7 Apr 2024 :

GBIFID: 4852882876; Occurrence Remarks: Found basking on a rock on trail. This chuckwallas was in a fairly humid area.;; Coordinate Uncertainty in Meters: 761.00000.

GBIFID: 4852596038; Occurrence Remarks: Feeding on Encelia blossoms; then fell.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4855001432; Occurrence Remarks: Hatchling;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4855500813; Occurrence Remarks: Female;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 2028495650; Occurrence Remarks: Joshua Tree National Park 49 Palms Oasis Trail;; Coordinate Uncertainty in Meters: 93.00000.

GBIFID: 2028495694; Occurrence Remarks: Joshua Tree National Park Arch Rock Trail loop;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 4854901928; Occurrence Remarks: Along the Split Rock Trail at Joshua Tree NP;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 2235482251; Occurrence Remarks: Missing a foot and with a half-regrown tail, but looked to otherwise be doing okay;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 2235481939; Occurrence Remarks: This chuckwalla got a crevice with a good view of the oasis.;; Coordinate Uncertainty in Meters: 50.00000.

GBIFID: 2235480948; Occurrence Remarks: Pooped, then ate. The circle of life.;; Coordinate Uncertainty in Meters: 40.00000.

GBIFID: 4872294296; Occurrence Remarks: Female found in Joshua Tree National Park;; Coordinate Uncertainty in Meters: 217.00000.

San Bernardino, California: 34.108256, -116.107359: : 7/2/2024: jenniferofthemeadow: 2 Jul 2024 :

Riverside, California: 34.014889, -116.173747: : 4/18/2026: Leos mama bear: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2237515300; Occurrence Remarks: beautiful guy up on the rocks;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 4935932697; Occurrence Remarks: Basking on rock;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 4946128330; Occurrence Remarks: Joshua Tree National Park;; Coordinate Uncertainty in Meters: 49952.00000.

San Bernardino, California: 34.113851, -116.11464: : 10/9/2024: Cameron W Barrows: 9 Oct 2024 :

GBIFID: 4982294011; Occurrence Remarks: Observed basking whilst the passing parade of human visitors were oblivious to its presence.;; Coordinate Uncertainty in Meters: 194.00000.

GBIFID: 5007556559; Occurrence Remarks: Location verified on satellite view.;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 5006729812; Occurrence Remarks: Location verified on satellite view.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 2251984484; Occurrence Remarks: oh the chuck went around with its foot off the ground ΓÖ¬;; Coordinate Uncertainty in Meters: 10.00000.

Riverside, California: 34.0071, -116.059411: : 4/15/2026: RS: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 5104695736; Occurrence Remarks: Huge!!;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 5133794234; Occurrence Remarks: Seen eating grass in Hidden Valley.;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 5134692581; Occurrence Remarks: Along the Hidden Valley nature loop trail;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5133334730; Occurrence Remarks: Also note buddy lizard Desert spiny;; Coordinate Uncertainty in Meters: 16.00000.

San Bernardino, California: 34.111245, -116.107139: : 5/1/2024: Braxton Jeffcoat: 1 May 2024 :

San Bernardino, California: 34.106981, -116.106108: : 5/1/2024: Braxton Jeffcoat: 1 May 2024 :

San Bernardino, California: 34.114116, -116.29485: : 4/14/2025: Sendy Hern├índez Orellana Barrows: 14 Apr 2025 :

San Bernardino, California: 34.114613, -116.293378: : 4/14/2025: Sendy Hern├índez Orellana Barrows: 14 Apr 2025 :

GBIFID: 2283081298; Occurrence Remarks: Seems the right shape and it did have broad stripes on its tail;; Coordinate Uncertainty in Meters: 48.00000.

San Bernardino, California: 34.115193, -116.107303: : 5/14/2025: Laura and Thomas Marlowe: 14 May 2025 :

San Bernardino, California: 34.113602, -116.107588: : 5/14/2025: Laura and Thomas Marlowe: 14 May 2025 :

San Bernardino, California: 34.114768, -116.10824: : 5/14/2025: Laura and Thomas Marlowe: 14 May 2025 :

GBIFID: 2283174691; Occurrence Remarks: Joshua Tree;; Coordinate Uncertainty in Meters: 2072.00000.

GBIFID: 5167528241; Occurrence Remarks: Barker Dam trail;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1265542933; Occurrence Remarks: Joshua tree. Chuckawalla male ♀; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1265907494; Occurrence Remarks: Young one.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2366088911; Occurrence Remarks: Juvenile?;; Coordinate Uncertainty in Meters: 49.00000.

GBIFID: 891725021; Occurrence Remarks: A adult chuckwalla diving into a crevice for safety.;; Coordinate Uncertainty in Meters: 1348.00000.

GBIFID: 4935914778; Occurrence Remarks: Joshua Tree National Park;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 2563630680; Occurrence Remarks: Juvenile specimen;; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.037487, -116.293598: : 4/2/2018: Tamara Szentivanyi: 2 Apr 2018 :

GBIFID: 2626553741; Occurrence Remarks: Alexander Rausch;; Coordinate Uncertainty in Meters: 100.00000.

GBIFID: 2814029775; Occurrence Remarks: Chuckwalla;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 910494302; Occurrence Remarks: Climbing rather energetically through a rather thorny shrub eating berries; then perching for a portrait.;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 1571162065; Occurrence Remarks: Seen in Joshua Tree National Park;; Coordinate Uncertainty in Meters: 14106.00000.

GBIFID: 1571162192; Occurrence Remarks: Sauromalus ater 26 Mar 2017 CA, SBE Co., Joshua Tree NP--49 Palms Oasis;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1571162205; Occurrence Remarks: Sauromalus ater 26 Mar 2017 CA, SBE Co., Joshua Tree NP--49 Palms Oasis;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1571162168; Occurrence Remarks: Sauromalus ater 26 Mar 2017 CA, SBE Co., Joshua Tree NP--49 Palms Oasis;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1571162115; Occurrence Remarks: Sauromalus ater 26 Mar 2017 CA, SBE Co., Joshua Tree NP--49 Palms Oasis A male and female together;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3018106762; Occurrence Remarks: Scanned from old slide. Date is correct; time is not. Location is from notes and memory, and thus imprecise.;; Coordinate Uncertainty in Meters: 762.00000.

GBIFID: 3018093686; Occurrence Remarks: Scanned from old slide. Date is correct; time is not. Location is from notes and memory, and thus imprecise.;; Coordinate Uncertainty in Meters: 762.00000.

GBIFID: 3018102732; Occurrence Remarks: Scanned from old slide. Date is correct; time is not. Location is from notes and memory, and thus imprecise.;; Coordinate Uncertainty in Meters: 762.00000.

GBIFID: 3031755545; Occurrence Remarks: 49 Palms trail, J-Tree NP;; Coordinate Uncertainty in Meters: 400.00000.

GBIFID: 3058685741; Occurrence Remarks: Juvenile chuckwalla in a creek - Mission Creek Preserve;; Coordinate Uncertainty in Meters: 84.00000.

GBIFID: 3070777100; Occurrence Remarks: Sauromalus ater 28 Mar 2021 CA, SBE Co., 49 Palms Oasis Trail;; Coordinate Uncertainty in Meters: 149.00000.

GBIFID: 3070768150; Occurrence Remarks: Sauromalus ater 28 Mar 2021 CA, SBE Co., 49 Palms Oasis Trail;; Coordinate Uncertainty in Meters: 149.00000.

GBIFID: 3079703792; Occurrence Remarks: Hidden Valley trail. It was eating this grass when I first noticed it and then left droppings on a nearby rock.;; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.112959, -116.10799: : 5/20/2021: Christof Van Der Schyf: 20 May 2021 :

GBIFID: 3124763955; Occurrence Remarks: Juveniles are so pretty.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 3124775545; Occurrence Remarks: Nice sized male.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1024205761; Occurrence Remarks: Big male sunning on a rock. My first ever sighting of this species. Exciting! NPS photo by Cathy Bell;; Coordinate Uncertainty in Meters: 109.00000.

GBIFID: 1024228685; Occurrence Remarks: on the trail to the 49 palms oasis;; Coordinate Uncertainty in Meters: 363.00000.

GBIFID: 1703234280; Occurrence Remarks: Was exhibiting healthy behavior, for when I approached to get a closer look, he dashed into the rock crevice.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 3337426104; Occurrence Remarks: Lizard species on a Boulder. Pricked my foot on the pointy part of a succulent while taking these photographs.;; Coordinate Uncertainty in Meters: 28874.00000.

GBIFID: 3344057808; Occurrence Remarks: large green fat lizard over 12 inches long with striped tail;; Coordinate Uncertainty in Meters: 15.00000.

San Bernardino, California: 34.081261, -116.239738: : 9/14/2021: Jacqueline Raiford: 14 Sep 2021 :

Riverside, California: 34.018578, -116.074386: : 4/5/2026: lie-lie: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.005449, -116.064987: : 3/25/2026: bryce_loschen: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 338.00000.

San Bernardino, California: 34.11475, -116.295775: : 3/28/2026: frizzywitch: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 66.00000.

San Bernardino, California: 34.114447, -116.295845: : 3/28/2026: frizzywitch: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.114661, -116.293639: : 3/28/2026: Alison Kreager: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 1.00000.

San Bernardino, California: 34.08279, -116.139622: : 3/25/2026: sonya_b: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 39.00000.

Riverside, California: 33.997643, -116.059494: : 3/17/2026: adilla4: 17 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Riverside, California: 33.969026, -116.091088: : 4/9/2026: nio mh: 9 Apr 2026 ; Coordinate Uncertainty in Meters: 7922.00000.

Riverside, California: 33.968761, -116.091873: : 4/9/2026: nio mh: 9 Apr 2026 ; Coordinate Uncertainty in Meters: 7474.00000.

Riverside, California: 34.005396, -116.098524: : 4/9/2026: nio mh: 9 Apr 2026 ; Coordinate Uncertainty in Meters: 15625.00000.

San Bernardino, California: 34.114217, -116.108217: : 4/29/2026: Cathy Wiley: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 34.018378, -116.17268: : 4/20/2026: niravraham: 20 Apr 2026 ; Coordinate Uncertainty in Meters: 122.00000.

Riverside, California: 34.015404, -116.171066: : 9/11/2025: tilman78: 11 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 34.015408, -116.171036: : 9/11/2025: Valentina: 11 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.036022, -116.125075: : 11/5/2025: Cathy Wiley: 5 Nov 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.998258, -116.06021: : 6/24/2026: Kurt van Wyk: 24 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Riverside, California: 33.986258, -116.015542: : 9/28/2025: Michael Garcia: 28 Sep 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.005026, -116.060895: : 5/12/2024: Jake Senne: 12 May 2024 ; Coordinate Uncertainty in Meters: 5.00000.

Riverside, California: 34.010412, -116.060234: : 5/12/2024: Jake Senne: 12 May 2024 ; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.094579, -116.155695: : 3/26/2026: Chris Mulligan: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Riverside, California: 33.98647, -116.015603: : 7/19/2026: reidwygal: 19 Jul 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Riverside, California: 34.015675, -116.172858: : 7/23/2026: Matt Tsuruda: 23 Jul 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Riverside, California: 34.01575, -116.172683: : 7/23/2026: Matt Tsuruda: 23 Jul 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Occurrence Remarks: Small Lizard, only maybe 5-6 long; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.628647, -116.951378: : 11/13/2025: Duncan Bell: 13 Nov 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 35.970394, -117.908595: : 9/22/2025: daphodilsd: 22 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3747317649; Occurrence Remarks: First observed this year. Two ducked into a rock crevice when I approached.;; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.645286, -117.558565: : 5/26/2025: Matt Gruen: 26 May 2025 ; Coordinate Uncertainty in Meters: 28790.00000.

San Bernardino, California: 34.481431, -117.130103: : 5/2/2026: stardune: 2 May 2026 ; Coordinate Uncertainty in Meters: 87.00000.

GBIFID: 1880594538; Occurrence Remarks: The subject of much sneaking up upon.;; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.557054, -115.782156: : 4/25/2023: Cheyenne Herzog-Lowrance: 25 Apr 2023 :

San Bernardino, California: 34.55721, -115.781427: : 4/25/2023: Cheyenne Herzog-Lowrance: 25 Apr 2023 :

San Bernardino, California: 34.556512, -115.783111: : 4/25/2023: Cheyenne Herzog-Lowrance: 25 Apr 2023 :

GBIFID: 4080684608; Occurrence Remarks: Female?;; Coordinate Uncertainty in Meters: 28620.00000.

San Bernardino, California: 34.556625, -115.782707: : 2/26/2026: avatrail: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 158.00000.

San Bernardino, California: 34.120786, -116.310775: : 5/2/2026: alexjmingolla: 2 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 35.20028, -115.872812: : 5/23/2026: nehavijay: 23 May 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Occurrence Remarks: Tortoise Trail, Desert Conservation Area; Coordinate Uncertainty in Meters: 28874.00000.

San Bernardino, California: 34.117008, -116.108986: : 5/17/2026: Kathy Snyder: 17 May 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Kern, California: 35.365696, -117.984903: : 3/22/2026: Aaron Veale: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 35.199417, -115.872453: : 5/26/2026: Kira Garcia: 26 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.117303, -116.110182: : 4/2/2026: ramchop: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

San Bernardino, California: 34.945104, -116.86767: : 4/22/2026: Laura Zarecky: 22 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 35.20023, -115.871605: : 4/24/2026: zoehendricks: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 35.20043, -115.867522: : 4/25/2026: chrismun319: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 35.200408, -115.867583: : 4/25/2026: Megan Johanson: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

San Bernardino, California: 34.117192, -116.109128: : 5/18/2026: wolfhowlin: 18 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

San Bernardino, California: 34.320582, -116.491674: : 5/20/2026: VisWildPhoto: 20 May 2026 ; Coordinate Uncertainty in Meters: 28846.00000.

San Bernardino, California: 34.292019, -116.472118: : 5/20/2026: VisWildPhoto: 20 May 2026 ; Coordinate Uncertainty in Meters: 28846.00000.

Los Angeles, California: 34.607562, -117.827233: : 5/22/2026: Kimball Garrett: 22 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Kern, California: 35.369147, -117.984688: : 5/23/2026: waxworms: 23 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Kern, California: 35.361755, -117.982625: : 5/24/2026: waxworms: 24 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 35.200317, -115.871553: : 4/24/2026: Devon Bradley: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 34.142025, -116.136227: : 5/25/2026: James Maughn: 25 May 2026 ; Coordinate Uncertainty in Meters: 28874.00000.

Occurrence Remarks: Chuckwalla (Sauromalus ater), Mohave County, Arizona; Coordinate Uncertainty in Meters: 15.00000.

Los Angeles, California: 34.696846, -117.818621: : 5/31/2026: Elizabeth Lockhart: 31 May 2026 ; Coordinate Uncertainty in Meters: 28790.00000.

Los Angeles, California: 34.661906, -117.982865: : 5/31/2026: Elizabeth Lockhart: 31 May 2026 ; Coordinate Uncertainty in Meters: 28790.00000.

Los Angeles, California: 34.68341, -117.889607: : 5/31/2026: njjturner: 31 May 2026 ; Coordinate Uncertainty in Meters: 28790.00000.

San Bernardino, California: 34.482133, -117.130342: : 3/22/2026: meganshackelford: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 35.617391, -117.371696: : 3/25/2026: Jim Van Matre: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.54484, -117.079624: : 6/5/2022: Courtney Christie: 5 Jun 2022 :

GBIFID: 4076142752; Occurrence Remarks: First picture is in hand, second in situ, and third is the release. Love these chunky lizards;; Coordinate Uncertainty in Meters: 28620.00000.

San Bernardino, California: 34.343662, -116.266178: : 9/2/2018: Spider Jane Fawke: 2 Sep 2018 :

GBIFID: 4076054725; Occurrence Remarks: 2nd chuckwalla of the hike. This one was faster than me.;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 4129911891; Occurrence Remarks: Mojave National Preserve;; Coordinate Uncertainty in Meters: 64.00000.

San Bernardino, California: 34.1177, -116.293838: : 4/8/2023: sototallywildlife: 8 Apr 2023 :

San Bernardino, California: 34.410814, -117.104616: : 6/4/2022: Courtney Christie: 4 Jun 2022 :

San Bernardino, California: 34.328547, -116.390862: : 5/6/2023: Jackson Driscoll: 6 May 2023 :

GBIFID: 4091456367; Occurrence Remarks: Managed to actually catch this one;; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.117317, -116.109025: : 2/15/2026: Jordan: 15 Feb 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.556353, -115.781856: : 2/26/2026: Joshua Doby: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.557542, -115.792522: : 2/26/2026: flamealchemist3532: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 5225.00000.

San Bernardino, California: 34.55295, -115.789225: : 2/26/2026: flamealchemist3532: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 4908.00000.

San Bernardino, California: 34.556238, -115.781813: : 2/26/2026: sleepybirb: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 11.00000.

San Bernardino, California: 34.555725, -115.782867: : 2/26/2026: sleepybirb: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.557187, -115.781363: : 2/26/2026: natjac: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

San Bernardino, California: 34.557208, -115.781395: : 2/26/2026: natjac: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 6.00000.

San Bernardino, California: 34.5571, -115.781938: : 2/28/2026: avathebuglady: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 53.00000.

Clark, Nevada: 35.390196, -114.787839: : 2/8/2026: wannabenaiad: 8 Feb 2026 ; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.550833, -115.786944: : 2/26/2026: Louis Xie: 26 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.598086, -115.189269: : 3/8/2026: Trevor Van Loon: 8 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.54428, -115.791892: : 3/7/2026: weirdfishes: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 35.615788, -117.371773: : 3/22/2026: zippitydooda: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 35.200397, -115.867578: : 4/25/2026: taylorfizzler: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Inyo, California: 35.970417, -117.908438: : 2/27/2026: Willow Coleman: 27 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 35.971317, -117.908967: : 3/29/2026: Elias Vera: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.665619, -115.790073: : 10/1/2025: Arioch Mgreene: 1 Oct 2025 ; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3747013895; Occurrence Remarks: Baby Chuckawalla Lizard by Arizona Hot Springs???? Yeeeehaw:~);; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 1880566031; Occurrence Remarks: Watched @tiwane & @kueda slowly work in closer to the second, smaller Chuckwalla. ( second shot ) The geology here is spectacular.;; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.544873, -115.790658: : 3/30/2026: Henry Fabian: 30 Mar 2026 ; Coordinate Uncertainty in Meters: 194.00000.

San Bernardino, California: 34.545005, -115.791013: : 3/30/2026: Henry Fabian: 30 Mar 2026 ; Coordinate Uncertainty in Meters: 194.00000.

San Bernardino, California: 34.137895, -116.415147: : 4/8/2026: count_doobie: 8 Apr 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Inyo, California: 35.971455, -117.908953: : 4/19/2026: goldensilence: 19 Apr 2026 ; Coordinate Uncertainty in Meters: 46.00000.

San Bernardino, California: 35.199852, -115.869921: : 4/25/2026: Adrian Rodriguez: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 153.00000.

San Bernardino, California: 34.949917, -116.864342: : 4/29/2026: Shawn Hunter: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 35.267516, -116.073907: : 4/25/2026: yatzilf: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 3793.00000.

Clark, Nevada: 35.268765, -114.652782: : 3/1/2026: Ally Coconis: 1 Mar 2026 ; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 35.059564, -115.418251: : 4/29/2026: electriclizard: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 1434.00000.

San Bernardino, California: 34.117314, -116.110239: : 5/1/2026: njdujnic: 1 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.545038, -115.793155: : 5/3/2026: sifakakyle: 3 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.945125, -116.862895: : 5/3/2026: Jen Milakovic Nelson: 3 May 2026 ; Coordinate Uncertainty in Meters: 195.00000.

San Bernardino, California: 34.123782, -116.313115: : 5/4/2026: lyssxrose: 4 May 2026 ; Coordinate Uncertainty in Meters: 3612.00000.

San Bernardino, California: 35.449858, -117.586837: : 4/24/2026: maxthc: 24 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Occurrence Remarks: Location approximate. Partial tail only. iNaturalist suggestion.; Coordinate Uncertainty in Meters: 192.00000.

Inyo, California: 35.97158, -117.909538: : 5/6/2026: mojavemama: 6 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 35.200408, -115.867583: : 4/25/2026: brettheili: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Yavapai, Arizona: 34.20332, -112.774902: : 5/6/2026: mmcaldwell: 6 May 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Mohave, Arizona: 34.5913, -114.354195: : 5/10/2026: Carlos A. Armenta: 10 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 35.042975, -115.399422: : 4/28/2026: Alex Verde: 28 Apr 2026 ; Coordinate Uncertainty in Meters: 13.00000.

Kern, California: 35.627567, -117.753532: : 1/17/2026: Kolin Campbell: 17 Jan 2026 ; Coordinate Uncertainty in Meters: 28649.00000.

Kern, California: 35.699977, -117.738001: : 1/24/2026: queenocdumpling: 24 Jan 2026 ; Coordinate Uncertainty in Meters: 28649.00000.

Kern, California: 35.660741, -117.623331: : 1/24/2026: queenocdumpling: 24 Jan 2026 ; Coordinate Uncertainty in Meters: 28649.00000.

Kern, California: 35.754148, -117.671616: : 1/24/2026: queenocdumpling: 24 Jan 2026 ; Coordinate Uncertainty in Meters: 28649.00000.

Kern, California: 35.657867, -117.771261: : 1/24/2026: Kolin Campbell: 24 Jan 2026 ; Coordinate Uncertainty in Meters: 28649.00000.

San Bernardino, California: 34.117477, -116.106286: : 2/8/2026: Ryan: 8 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Los Angeles, California: 34.679365, -117.769573: : 2/8/2026: Wendy Walker: 8 Feb 2026 ; Coordinate Uncertainty in Meters: 425.00000.

San Bernardino, California: 34.117752, -116.111193: : 2/8/2026: Ryan: 8 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.557374, -115.780923: : 2/7/2026: Deadwood: 7 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 35.97077, -117.908155: : 3/29/2026: karenhurst: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 34.117231, -116.109314: : 4/29/2026: cherylmorgan: 29 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 35.970325, -117.908233: : 3/28/2026: Brooke Sheridan: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 10.00000.

Mohave, Arizona: 35.214728, -114.044767: : 4/4/2026: Lauren van Schijndel: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 35.971542, -117.909081: : 3/18/2026: cantino: 18 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Kern, California: 35.231888, -117.95188: : 5/24/2025: Matt Gruen: 24 May 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

Kern, California: 35.375072, -117.89759: : 5/24/2025: Matt Gruen: 24 May 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 35.205155, -117.605674: : 5/26/2025: Matt Gruen: 26 May 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 35.377389, -116.80391: : 9/18/2025: Erik Atwell: 18 Sep 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

Inyo, California: 35.969946, -117.908964: : 9/22/2025: Allison Helm: 22 Sep 2025 ; Coordinate Uncertainty in Meters: 192.00000.

Inyo, California: 35.971443, -117.908892: : 9/26/2025: Elijah S.: 26 Sep 2025 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.122794, -116.307521: : 4/14/2026: gsziklai: 14 Apr 2026 ; Coordinate Uncertainty in Meters: 87.00000.

San Bernardino, California: 35.20037, -115.871778: : 5/7/2026: Isaiah Woodard: 7 May 2026 ; Coordinate Uncertainty in Meters: 118.00000.

San Bernardino, California: 35.196183, -115.953915: : 4/25/2026: karebear8926: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 19883.00000.

San Bernardino, California: 35.047013, -115.395715: : 3/29/2026: Andrea Carpio: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 223.00000.

San Bernardino, California: 35.047124, -115.394477: : 3/29/2026: Andrea Carpio: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 15.00000.

San Bernardino, California: 34.464138, -116.934297: : 3/25/2026: jocyflowers12: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 17.00000.

San Bernardino, California: 35.615791, -117.37178: : 3/22/2026: zippitydooda: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 35.602836, -115.479514: : 3/5/2026: Matt Berger: 5 Mar 2026 ; Coordinate Uncertainty in Meters: 12.00000.

Mohave, Arizona: 35.134016, -114.527639: : 3/23/2026: lizardgirl9: 23 Mar 2026 ; Coordinate Uncertainty in Meters: 23.00000.

San Bernardino, California: 34.609835, -116.991328: : 3/25/2026: jocyflowers12: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 38.00000.

San Bernardino, California: 35.131393, -115.999392: : 3/24/2026: charles_lehnen: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 1094.00000.

San Bernardino, California: 34.262412, -115.760728: : 3/26/2026: possiblybuddha: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 374.00000.

San Bernardino, California: 35.11313, -115.378804: : 3/26/2026: Caroline Lindstedt: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 28734.00000.

San Bernardino, California: 35.044006, -115.397287: : 3/25/2026: Mark Pollock: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

San Bernardino, California: 35.046695, -115.397263: : 3/25/2026: Mark Pollock: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.557179, -115.781271: : 3/19/2026: Juliana Gomez: 19 Mar 2026 ; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.8154, -115.61882: : 3/22/2026: Mark Pollock: 22 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Los Angeles, California: 34.718351, -117.87402: : 3/25/2026: Olivia Miseroy: 25 Mar 2026 ; Coordinate Uncertainty in Meters: 28790.00000.

San Bernardino, California: 34.117226, -116.110196: : 4/2/2026: ramchop: 2 Apr 2026 ; Coordinate Uncertainty in Meters: 704.00000.

Inyo, California: 35.970719, -117.908158: : 3/29/2026: Adith R: 29 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.11717, -116.109883: : 4/7/2026: jenniferofthemeadow: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Mohave, Arizona: 34.43545, -114.248138: : 4/7/2026: Jack King: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 34.126883, -116.058047: : 4/10/2026: psteffek: 10 Apr 2026 ; Coordinate Uncertainty in Meters: 2488.00000.

San Bernardino, California: 34.184464, -116.184518: : 4/12/2026: tkgoggin: 12 Apr 2026 ; Coordinate Uncertainty in Meters: 28874.00000.

San Bernardino, California: 34.745717, -116.66468: : 3/26/2025: Andrew Holycross: 26 Mar 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Kern, California: 35.363525, -117.984747: : 6/7/2026: anyagor: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 20.00000.

San Bernardino, California: 34.470395, -116.905128: : 6/7/2026: Ethan Gilmore: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 7962.00000.

San Bernardino, California: 34.940303, -115.51258: : 6/6/2026: Corey Lange: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.215886, -116.523968: : 4/18/2026: tunador: 18 Apr 2026 ; Coordinate Uncertainty in Meters: 13.00000.

Kern, California: 35.33873, -117.766965: : 5/26/2025: Matt Gruen: 26 May 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

Mohave, Arizona: 35.039071, -114.356376: : 6/16/2026: dbrookens: 16 Jun 2026 ; Coordinate Uncertainty in Meters: 251.00000.

Kern, California: 35.384372, -117.962319: : 6/7/2026: artzerphotog: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 2974.00000.

Inyo, California: 35.966696, -117.8783: : 6/27/2026: Cole Ivie: 27 Jun 2026 ; Coordinate Uncertainty in Meters: 28620.00000.

Inyo, California: 35.971497, -117.909028: : 6/26/2026: Andrew Easton: 26 Jun 2026 ; Coordinate Uncertainty in Meters: 14.00000.

San Bernardino, California: 35.184433, -115.837105: : 6/17/2026: kieranmurray: 17 Jun 2026 ; Coordinate Uncertainty in Meters: 14.00000.

San Bernardino, California: 35.389668, -116.848974: : 9/27/2025: Erik Atwell: 27 Sep 2025 ; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1838041312; Occurrence Remarks: Juvie;; Coordinate Uncertainty in Meters: 5504.00000.

San Bernardino, California: 34.119737, -116.111339: : 6/13/2016: Jonathan Mills-Anderson: 13 Jun 2016 :

San Bernardino, California: 35.040052, -115.3968: : 3/24/2022: Philip Georgakakos: 24 Mar 2022 :

GBIFID: 3760033539; Occurrence Remarks: Scuffed pic but only one I found and very flighty. :(;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 3760331363; Occurrence Remarks: Unusual, Split tail;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3759408420; Occurrence Remarks: One of a pair currently inhabiting this rock pile.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 4091730413; Occurrence Remarks: This lizard was king of the lava flow I could feel it;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3802523630; Occurrence Remarks: Same individual observed here.;; Coordinate Uncertainty in Meters: 33.00000.

GBIFID: 3802747982; Occurrence Remarks: Photo taken from kayak on Lake Havasu;; Coordinate Uncertainty in Meters: 13673.00000.

GBIFID: 1065613592; Occurrence Remarks: Found and caught a chuckwalla, then released it after checking it out. Hes giving us the evil eye in the last picture.;; Coordinate Uncertainty in Meters: 200.00000.

GBIFID: 3873497460; Occurrence Remarks: Fossil falls;; Coordinate Uncertainty in Meters: 4.00000.

San Bernardino, California: 34.223152, -116.226222: : 6/2/2018: Spider Jane Fawke: 2 Jun 2018 :

GBIFID: 1088927321; Occurrence Remarks: San Bernardino County, California, US;; Coordinate Uncertainty in Meters: 240.00000.

GBIFID: 1088929233; Occurrence Remarks: This S. ater was observed in a rock crevices.;; Coordinate Uncertainty in Meters: 28818.00000.

GBIFID: 1088929309; Occurrence Remarks: A juvenile S ater was observed out basking on a granite rock then ran in to rock crevise. Rock temp 106.3 F Weather conditions for the day Sky clear, sunny. High 74F Wind NW 5 to 10 mph.;; Coordinate Uncertainty in Meters: 28818.00000.

GBIFID: 1088933756; Occurrence Remarks: Observed this Chuckwalla climbing over rocks and sunning.;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 3923646549; Occurrence Remarks: Wish I got a better look at him but in typical chuckwalla fashion he wedged himself in a crack;; Coordinate Uncertainty in Meters: 97.00000.

GBIFID: 1880565987; Occurrence Remarks: My last day to see this species. The desert seemed actually pleasant at a mere 85 degrees this morning. @kueda found the first and we all squealed with delight when it started to feed on a bush.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1088944424; Occurrence Remarks: Photo by Dina Robertson;; Coordinate Uncertainty in Meters: 100.00000.

GBIFID: 1880602560; Occurrence Remarks: Getting at them plants.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1088947658; Occurrence Remarks: For years Ive been forced to tell people that despite multiple trips to the desert I had never seen a chuckwalla. Now that can change. Many thanks to the Canadian dude who pointed us toward this.;; Coordinate Uncertainty in Meters: 67.00000.

GBIFID: 1088951811; Occurrence Remarks: Very large and old Chuckwalla;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1088951881; Occurrence Remarks: 15 different Chuckwalls seen today. More than I have ever seen before let alone in one day at one location.;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 4034662840; Occurrence Remarks: This chuck was eating the lycium leaves and berries;; Coordinate Uncertainty in Meters: 18173.00000.

GBIFID: 1092881351; Occurrence Remarks: Chuckwalla found within basalt outcrop at Inscription Canyon north of Black Mountain.;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 4075800795; Occurrence Remarks: Very windy, 60 degrees out basking;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 4075791818; Occurrence Remarks: Large lizard, roughly 10 inches long. Tail roughly body length. 4 light yellow spots on back almost invisible becoming highly visible rings on tail. Urinated on rock with no warning then raised tail slightly to defecate. Later when observed eating, found green leaves and small flowers to munch on.;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 4076100733; Occurrence Remarks: 3rd chuckwalla. This one wasnt even nice enough to let me get a picture before it dove into the crevice.;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 4080646200; Occurrence Remarks: With Red Rock Canyon Monkeyflower;; Coordinate Uncertainty in Meters: 122.00000.

GBIFID: 4080566295; Occurrence Remarks: Released afterwards, of course;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 4080584214; Occurrence Remarks: Sneaky guy wouldnt even let me get a close up of his tail. Hole too deep.;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 4091735383; Occurrence Remarks: Pooped right in front of us, then proceeded to evade me;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 4091569367; Occurrence Remarks: Big boy. (released afterwards, of course);; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 35.200878, -115.87092: : 4/21/2023: Jeremiah Degenhardt: 21 Apr 2023 :

San Bernardino, California: 35.198249, -115.877286: : 4/21/2023: Jeremiah Degenhardt: 21 Apr 2023 :

San Bernardino, California: 35.658285, -116.407194: : 5/6/2023: bighornsheepgirl: 6 May 2023 :

San Bernardino, California: 35.692346, -116.458449: : 5/6/2023: bighornsheepgirl: 6 May 2023 :

GBIFID: 1143519235; Occurrence Remarks: Chuckwalla sunning on a cool morning.;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 4116080552; Occurrence Remarks: At last! :-);; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4116122877; Occurrence Remarks: -herbivorous - found in large rock crevice at camp site, basking in sun -adult male;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4116177206; Occurrence Remarks: A favorite basking area for chuckwallas.;; Coordinate Uncertainty in Meters: 28649.00000.

GBIFID: 4116407076; Occurrence Remarks: A best guess. Scat contents appear to be vegetable matter. Last photo is a similar scat located four feet away.;; Coordinate Uncertainty in Meters: 28649.00000.

GBIFID: 4116554488; Occurrence Remarks: Saw this guy on a hike in Bell Mountain;; Coordinate Uncertainty in Meters: 141.00000.

GBIFID: 4129890859; Occurrence Remarks: Mojave National Preserve;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 4133731182; Occurrence Remarks: Picture captured via security camera footage in the vicinity of Big Morongo Canyon. MV CA;; Coordinate Uncertainty in Meters: 28874.00000.

San Bernardino, California: 35.201246, -116.089077: : 3/24/2026: auraet: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 151709.00000.

San Bernardino, California: 34.444877, -117.05839: : 6/8/2023: Robert Twombley: 8 Jun 2023 :

GBIFID: 4171779695; Occurrence Remarks: Above the collared lizard;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 4420925838; Occurrence Remarks: just a little guy enjoying the warmth of the sun;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 4525265532; Occurrence Remarks: Noosed;; Coordinate Uncertainty in Meters: 7.00000.

San Bernardino, California: 34.544633, -115.792733: : 3/29/2024: thomasmonroemiller: 29 Mar 2024 :

San Bernardino, California: 34.482668, -117.130593: : 4/2/2024: mpatrovskychacon: 2 Apr 2024 :
GBIFID: 5062677725; Occurrence Remarks: (Rough location);; Coordinate Uncertainty in Meters: 131.00000.

GBIFID: 4852963605; Occurrence Remarks: Vicinity of Fossil Falls, Inyo County, California, elev. approx. 3300 feet.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4852218711; Occurrence Remarks: Hiding in crevice on the side of a mountain near cave entrance;; Coordinate Uncertainty in Meters: 1.11000.

San Bernardino, California: 35.200353, -115.872712: : 4/28/2024: Robert Daniel Avila: 28 Apr 2024 :

San Bernardino, California: 35.199905, -115.870758: : 4/28/2024: Robert Daniel Avila: 28 Apr 2024 :

San Bernardino, California: 35.200083, -115.871187: : 4/28/2024: Robert Daniel Avila: 28 Apr 2024 :

GBIFID: 4855387963; Occurrence Remarks: scan from slide; location from field notes;; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.727463, -116.61428: : 5/3/2024: possiblybuddha: 3 May 2024 :

GBIFID: 5062703062; Occurrence Remarks: Chuckwalla scat found on perching rocks;; Coordinate Uncertainty in Meters: 65.00000.

San Bernardino, California: 34.472267, -116.805458: : 9/3/2023: MojaveMisanthrope: 3 Sep 2023 :

GBIFID: 2234765333; Occurrence Remarks: Chuckwalla hiding in a crack!;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4872505269; Occurrence Remarks: Juvenile Chuck;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4875248384; Occurrence Remarks: Can see head in first photo, tail in second. Wish I coulda gotten a better shot but itΓÇÖs my first time seeing one, so thatΓÇÖs still sick!;; Coordinate Uncertainty in Meters: 28734.00000.

San Bernardino, California: 34.5419, -115.76917: : 5/27/2024: Naomi Barber-Choi: 27 May 2024 :
GBIFID: 4875129160; Occurrence Remarks: Observation is for the one in the front, not the one in the bush;; Coordinate Uncertainty in Meters: 28818.00000.

GBIFID: 4875547882; Occurrence Remarks: Observation is for the one in the bush;; Coordinate Uncertainty in Meters: 28818.00000.

GBIFID: 4875324527; Occurrence Remarks: Found by Stella Raymond.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 2236241905; Occurrence Remarks: very common in area;; Coordinate Uncertainty in Meters: 20.00000.

San Bernardino, California: 34.543883, -115.791109: : 4/10/2010: Shannon Christine McLaughlin: 10 Apr 2010 :

Mohave, Arizona: 34.440678, -114.260827: : 4/8/2010: Shannon Christine McLaughlin: 8 Apr 2010 :

San Bernardino, California: 34.286887, -116.432791: : 6/20/2024: Jeremiah Degenhardt: 20 Jun 2024 :

GBIFID: 2238788984; Occurrence Remarks: it came back out of the crack for better pictures gravid female;; Coordinate Uncertainty in Meters: 5.00000.

San Bernardino, California: 34.11692, -116.108692: : 7/2/2024: jenniferofthemeadow: 2 Jul 2024 :

San Bernardino, California: 34.117456, -116.110599: : 7/2/2024: jenniferofthemeadow: 2 Jul 2024 :

GBIFID: 4945606620; Occurrence Remarks: -location not exact;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 4945759517; Occurrence Remarks: -location not exact;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 2237447074; Occurrence Remarks: 49 Palms Oasis;; Coordinate Uncertainty in Meters: 35.00000.

GBIFID: 2237510086; Occurrence Remarks: Several Chuckwallas sunning on the rocks.;; Coordinate Uncertainty in Meters: 117.00000.

Los Angeles, California: 34.607907, -117.827227: : 3/21/2026: Jakob Ingle: 21 Mar 2026 ; Coordinate Uncertainty in Meters: 22.00000.

GBIFID: 4953022662; Occurrence Remarks: Small chuck tucked tight into a rock crevice.;; Coordinate Uncertainty in Meters: 28649.00000.

GBIFID: 2242858135; Occurrence Remarks: 80F about, but cooler with breeze. We saw several chuckwallas basking. This one appeared to be older and had some scarring. We think it was male given the size and shape of the head, although the tail is banded....;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 2242857679; Occurrence Remarks: 80F approx but breeze made cooler. Basking. Note banded tail.;; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.9085, -115.4245: : 5/19/2010: Gabriel Magnus: 19 May 2010 :

San Bernardino, California: 34.700963, -116.756078: : 5/4/2019: Spider Jane Fawke: 4 May 2019 :

GBIFID: 2242885547; Occurrence Remarks: Female Chuckwalla;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 5006907402; Occurrence Remarks: RX10_46615, RX10_46616;; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.543883, -115.791109: : 3/30/2026: Henry Fabian: 30 Mar 2026 ; Coordinate Uncertainty in Meters: 194.00000.

GBIFID: 5108226801; Occurrence Remarks: May have invaded his privacy a bit;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5140138614; Occurrence Remarks: Hanging out on a stick!;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 5141004356; Occurrence Remarks: retreated to rock crevice;; Coordinate Uncertainty in Meters: 244.00000.

GBIFID: 5141074582; Occurrence Remarks: I think...;; Coordinate Uncertainty in Meters: 28734.00000.

GBIFID: 5140907208; Occurrence Remarks: CNC 2025;; Coordinate Uncertainty in Meters: 28790.00000.

GBIFID: 5140980512; Occurrence Remarks: CNC 2025;; Coordinate Uncertainty in Meters: 28790.00000.

GBIFID: 5154065797; Occurrence Remarks: Only non side-blotched lizard out on this chilly day. It had just started out on a rock next to the trail when we came by and it ran into this fissure. Photographed from a distance and we left it quickly.;; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 35.075909, -115.960465: : 5/1/2025: Jeremiah Degenhardt: 1 May 2025 :

San Bernardino, California: 35.395897, -115.936683: : 5/2/2025: Jeremiah Degenhardt: 2 May 2025 :

San Bernardino, California: 35.23745, -115.928328: : 5/3/2025: Jeremiah Degenhardt: 3 May 2025 :

San Bernardino, California: 35.040404, -116.968887: : 5/6/2025: Alexander Gregory Mason: 6 May 2025 :

GBIFID: 1262379128; Occurrence Remarks: Found at 18:24 hours Temperature 65-70 Clear skies Habitat decomposed Granite, outcropping.;; Coordinate Uncertainty in Meters: 28790.00000.

GBIFID: 1262383561; Occurrence Remarks: Sauromalus ater, very camera shy. All shots were beyond 10 feet except while it was hiding in the crack.;; Coordinate Uncertainty in Meters: 1.00000.

San Bernardino, California: 35.200383, -115.872697: : 5/17/2025: Nerd (Morgan Hope) Francis: 17 May 2025 :

GBIFID: 5168173902; Occurrence Remarks: Handled under permit;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 5166973727; Occurrence Remarks: Handled under permit;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 5166917960; Occurrence Remarks: Handled under permit;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 5198821684; Occurrence Remarks: Ran under a rock before I could snap a proper pic, but it has the large, flat body and banded tail of a chuckwalla. The pictures leave doubt, but it was quite clearly a chuckwalla.;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 1265556698; Occurrence Remarks: One large, dark lizard. Appeared to be shedding its skin. Slow moving, perched on a rock outcrop.;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 1265572495; Occurrence Remarks: Chuckwalla, gravid female?;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1265592215; Occurrence Remarks: The first lizard I saw and it was a road kill.;; Coordinate Uncertainty in Meters: 27.00000.

GBIFID: 1269547084; Occurrence Remarks: Adult male and adult female on dark rock outcrop near road. Low 80s. Collected with Stevie Kennedy-Gold.;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 1269547091; Occurrence Remarks: Adult male and adult female on dark rock outcrop near road. Low 80s. Collected with Stevie Kennedy-Gold.;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 1269557481; Occurrence Remarks: This is a male chuckwalla that was found hiding between lava rocks. Dried, old scat was found first and new, fresh scat was found. I used a mirror to light up between the lava cracks. I initially spotted his tail and then saw his body and face wedged in. The male was shedding its skin and had a broken tail that was being regenerated.;; Coordinate Uncertainty in Meters: 437.00000.

GBIFID: 891715216; Occurrence Remarks: One of several Chuckwallas that had been encountered at Amboy Crater in the early afternoon. Many had darted into the crevices between rocks when they felt threatened. This one was caught and held by one of my previous instructors for the rest of the class to look at. As I approached with my camera, he first attempted to bite at my camera, then hissed at me and inflated himself when I took this picture;; Coordinate Uncertainty in Meters: 2430.00000.

GBIFID: 2609141282; Occurrence Remarks: 3 seen;; Coordinate Uncertainty in Meters: 28734.00000.

San Bernardino, California: 34.29656, -116.36704: : 4/25/2020: Spider Jane Fawke: 25 Apr 2020 :

San Bernardino, California: 34.409911, -116.918647: : 5/11/2020: Miranda Mikel Buckley: 11 May 2020 :

GBIFID: 2626340140; Occurrence Remarks: Sauromalus ater 16 May 2020 CA, SBE Co., Salt Creek ACEC;; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.591972, -117.069333: : 5/17/2020: Karol Tabarelli de Fatis: 17 May 2020 :
GBIFID: 2634223940; Occurrence Remarks: ph Riccardo Basani;; Coordinate Uncertainty in Meters: 194.00000.

GBIFID: 2633976119; Occurrence Remarks: IΓÇÖve observed this pair several times over the past two months. They appear to be the sole residents of a small chuckwalla ΓÇ£islandΓÇ¥. Next nearest suitable chuck habitat is about 100 yards away. The black one (male?) is more skittish than the tan one.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2634393409; Occurrence Remarks: When dinosaurs ruled the earth?;; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 35.049355, -115.537565: : 5/6/2011: David Greenberg, PhD: 6 May 2011 :

GBIFID: 2634307895; Occurrence Remarks: On the move. The chuckwallas seem to be roaming around the past few days, rather than hang out at the home rock.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2641295736; Occurrence Remarks: In an area where I havenΓÇÖt seen one earlier.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 891033000; Occurrence Remarks: One of about 8-10 chuckwallas we saw this day with Matt and Colin in the Mojave Desert between Apple Valley and Lucerne Valley. This one was a big male with nice speckled pattern. Also saw Utas, Desert Spinys and Whiptails. Temp ranged from 70-90 from morning to mid afternoon.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 891032997; Occurrence Remarks: Another big male with more typical solid red back in same area as the others.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 891032939; Occurrence Remarks: One of a handful of juveniles we saw and 2nd juv caught this day, only one at this spot.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2814145004; Occurrence Remarks: I did not know chuckwallas climbed bushes like this...;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 2813970411; Occurrence Remarks: Very mellow, let me approach for photos;; Coordinate Uncertainty in Meters: 12.00000.

GBIFID: 4936564280; Occurrence Remarks: Red Rock Canyon State Park;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 2818562655; Occurrence Remarks: Upon my approach, this chuckwalla outsmarted itself by diving into a box canyon in the rocks. This made it very easy to photograph, although it seemed irked for making a rookie mistake.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2818770806; Occurrence Remarks: This one had climbed up into the sagebrush, first time I have seen one off the ground in a bush. After dropping & running to a rock pile, it became very curious as to what I was up to.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2818524004; Occurrence Remarks: Same lizard seen yesterday. Interestingly, it was a fair distance away from its favorite spot, out in open country. It bypassed several suitable rock piles while making its escape, it was intent on getting to ΓÇ£itsΓÇ¥ rock. Once there, it settled down & tolerated my lack of social distancing.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1453514571; Occurrence Remarks: Eating Desert Rock Pea;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1457586029; Occurrence Remarks: Running on lichen.;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1457586486; Occurrence Remarks: Two Chuckwallas;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1453530061; Occurrence Remarks: Very large chuck, yellow tail and abdomen.;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 2851047496; Occurrence Remarks: Chuckwalla only a trail in Henderson;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 2851035110; Occurrence Remarks: Very hot day, temperature was already up to 104F. I havenΓÇÖt seen one of these in the past several weeks.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1457640262; Occurrence Remarks: mating sequence;; Coordinate Uncertainty in Meters: 28706.00000.

GBIFID: 1562887225; Occurrence Remarks: mating sequence;; Coordinate Uncertainty in Meters: 28706.00000.

San Bernardino, California: 34.119, -116.111503: : 4/3/2017: Stephanie Calloway: 3 Apr 2017 :

GBIFID: 899953494; Occurrence Remarks: Large male Saurmalus ater was observed, head bobbing (seven times) on a large boulder over looking a valley. The head bobbing stop when I start to move closer to this S. alter to be able to take more close up pictures. Two juveniles S. aters have been observe with in 40 feet of where this picture was been taking. (One was observed the same day 3/23/2014. The second was observe on 4/28/2014. No photo vouchers where taking of this Juveniles S. aters). Observed species 3/23/2014 - 1.) Three Sauromalus ater (Photo vouchers where taking). 2.) Seven Aspidoscelis tigris Where observed among the rock hill side. A. tigris where chasing each other in groups of two, observation of A. tigris interacting with groups of two seem to be preoccupied in chasing (at a faster pace that there average walking speed) each other and not paying to much attention to there surroundings. This ethology anadoltole observation seem to be indicated by been able to observe a pair chasing each other for serial minutes. Until one of the pair of A. tigris would observe me and sundial the pair would stop and start to walk off. after a few seconds of walking off. One of the two A. tigris would start to pursue the other and the chasing would start again at a great distance, than original observed at. One was observed by it self . (No photo vouchers where taking). 3. One female Uta stansburiana was observed at the bottom of the granite rock out crop. As soon as it was observed it ran underneath a rock (No photo voucher where taking). 4. Two Sceloprus magister where observed. The first one observed among the granite bolder at a distance of greater than 30 feet. As soon as this S. magister has observed it ran down the granite boulder and was not observed again. The second S. magister was observed once again on a granite boulder and was observed to head bob for a total of three bobs before disappearing at of site never to be seen again. (No photo vouchers where taking). Anadotole evidence obtain from observing of a posted picture from facebook shows a Lichanura trivirgata taking from this area within the same weeks of when this photo vouchers was taking 3/23/14. (It should be noted that I did not look under any rocks or plywoods that day). Habitat photo has been had to this profile of the area. (Latina names was taking from Robert C. Stebbins and Samuel M. McGinnis. Field Guide to amphibians and reptiles of California revised edition.);; Coordinate Uncertainty in Meters: 28818.00000.

San Bernardino, California: 34.954126, -116.847359: : 3/7/2014: LAUREN NICOLE PENINGER: 7 Mar 2014 :
GBIFID: 899953676; Occurrence Remarks: Came across this chuckwalla sun bathing out in Odessa Canyon (Calico Mtns) he was actually pretty funny. Everytime I inched closer to take a photo of him he scrambled into a rock crevice below him,but no later then 20 seconds later he would crawl back out,look at me and return to his tanning bed. We went threw this back and forth for 30 minutes at least. There was a juvenile Chuckwalla about 12 feet away from me also out for sun,but he was too fast for me to get close enough to for a photo.;; Coordinate Uncertainty in Meters: 217.00000.

San Bernardino, California: 34.44, -115.204: : 4/19/2017: Carol Blaney: 19 Apr 2017 :
GBIFID: 1500301164; Occurrence Remarks: Juvenile chuckwalla in shade in Old Woman Mountains Wilderness;; Coordinate Uncertainty in Meters: 1110.00000.

GBIFID: 1500325068; Occurrence Remarks: In creosote bush scrub transition area, western Mohave desert.;; Coordinate Uncertainty in Meters: 1032.00000.

GBIFID: 4935996836; Occurrence Remarks: Death Valley;; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 899967238; Occurrence Remarks: Discovered in crevice of lava rocks.;; Coordinate Uncertainty in Meters: 218.00000.

GBIFID: 1562978971; Occurrence Remarks: Same individual as http://www.inaturalist.org/observations/6343127;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 899976864; Occurrence Remarks: This pair was observe early in the year together.;; Coordinate Uncertainty in Meters: 28818.00000.

GBIFID: 899980221; Occurrence Remarks: We saw at least 5 chuckwallas in this same area but I was only able to get close enough to voucher this adult male. Also saw another male that went under a rock pile where a female chuckwalla and kangaroo rat were both hiding.;; Coordinate Uncertainty in Meters: 499.00000.

GBIFID: 5062485304; Occurrence Remarks: It was wedged between a rock and we were not able to get it out;; Coordinate Uncertainty in Meters: 35818.00000.

GBIFID: 910500319; Occurrence Remarks: This S. ater was a large adult male which was observed in granite rocks.;; Coordinate Uncertainty in Meters: 28818.00000.

San Bernardino, California: 34.116906, -116.108101: : 6/28/2017: jenniferofthemeadow: 28 Jun 2017 :

San Bernardino, California: 34.55147, -115.784749: : 4/2/2016: Brad Winckelmann: 2 Apr 2016 :

San Bernardino, California: 34.9085, -115.4245: : 5/19/2010: Gabriel Magnus: 19 May 2010 :
GBIFID: 3314239394; Occurrence Remarks: Chuckwalla?;; Coordinate Uncertainty in Meters: 11.10000.

GBIFID: 911498555; Occurrence Remarks: Herpetofaunal inventory of the Old Woman Mountains, UCLA Field Biology Course;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 911498500; Occurrence Remarks: Herpetofaunal inventory of the Old Woman Mountains, UCLA Field Biology Course;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 911498503; Occurrence Remarks: Herpetofaunal inventory of the Old Woman Mountains, UCLA Field Biology Course;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3044684165; Occurrence Remarks: small baby lizard; the size of my palm (3.5-4 inches);; Coordinate Uncertainty in Meters: 28649.00000.

GBIFID: 3058954499; Occurrence Remarks: Valley of Fire;; Coordinate Uncertainty in Meters: 2416661.00000.

San Bernardino, California: 34.396618, -116.267632: : 3/5/2021: Spider Jane Fawke: 5 Mar 2021 :

San Bernardino, California: 34.94155, -115.513412: : 4/5/2019: samanthadewing: 5 Apr 2019 :

San Bernardino, California: 34.177353, -116.154588: : 3/24/2021: Marissa Ortega-Welch: 24 Mar 2021 :

GBIFID: 911505368; Occurrence Remarks: Common Chuckwalla;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 3383968586; Occurrence Remarks: I believe this is a juvenile chuckwalla;; Coordinate Uncertainty in Meters: 47035.00000.

GBIFID: 3070772132; Occurrence Remarks: Sauromalus ater 28 Mar 2021 CA, SBE Co., 49 Palms Oasis Trail;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 3079574299; Occurrence Remarks: First IΓÇÖve seen this year. Wedged itself in a crevice before I could take a good photo.;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 3079620459; Occurrence Remarks: 1:00 PM. 82F;; Coordinate Uncertainty in Meters: 28790.00000.

GBIFID: 3090795218; Occurrence Remarks: Last photo is moreso for habitat since the lizard is almost invisible unless you zoom all the way in.;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 3090654613; Occurrence Remarks: In the Sheephole Valley Wilderness;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3097064602; Occurrence Remarks: Big Chuck.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3097305753; Occurrence Remarks: En route to AZ Hot Spgs;; Coordinate Uncertainty in Meters: 28620.00000.

GBIFID: 4935996003; Occurrence Remarks: Red Rock Canyon State Park;; Coordinate Uncertainty in Meters: 61.00000.

San Bernardino, California: 35.155183, -115.448341: : 8/2/2017: Nicholas Pollock: 2 Aug 2017 :

GBIFID: 923923123; Occurrence Remarks: This big guy didnt want to show his face to my camera;; Coordinate Uncertainty in Meters: 150.00000.

GBIFID: 3118332564; Occurrence Remarks: Seen foraging on blossoms at the top of the bush in the second photo. The dark lump in the center of that second photo is the chuckwalla making its way down to the ground.;; Coordinate Uncertainty in Meters: 28649.00000.

San Bernardino, California: 34.144391, -116.029723: : 5/6/2021: Graham Montgomery: 6 May 2021 :

GBIFID: 3301839087; Occurrence Remarks: Sometimes that lizard-shaped rock is actually a rock-shaded lizard.;; Coordinate Uncertainty in Meters: 49.00000.

GBIFID: 3302166532; Occurrence Remarks: Approximately 3 inches S-V. First IΓÇÖve seen this small.;; Coordinate Uncertainty in Meters: 28649.00000.

GBIFID: 3302124997; Occurrence Remarks: Same individual.;; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.74878, -116.367025: : 5/8/2013: Alyssa Semerdjian: 8 May 2013 :

GBIFID: 3314371951; Occurrence Remarks: Several were on the move this morning, away from their rock piles.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1677339256; Occurrence Remarks: Old Trails Road,Kingman, Mohave County, Arizona;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3327708697; Occurrence Remarks: Mating on the access road to parker dam.;; Coordinate Uncertainty in Meters: 28846.00000.

San Bernardino, California: 35.66587, -117.59888: : 7/9/2021: Kolin Campbell: 9 Jul 2021 :

GBIFID: 3328027886; Occurrence Remarks: It was sitting in the the top of a small sagebrush plant when I first spotted it.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3343789959; Occurrence Remarks: Same chuckwalla in the same rock pile seen last weekend. IΓÇÖm calling it an adult, but itΓÇÖs somewhere between full size & the smaller, striped juveniles.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3355083187; Occurrence Remarks: IΓÇÖve seen several chuckwallas in the past few days. This one has a very light coloration that blends perfectly into its surroundings.;; Coordinate Uncertainty in Meters: 2.00000.

San Bernardino, California: 34.160724, -115.498352: : 8/2/2025: calfirecap: 2 Aug 2025 ; Coordinate Uncertainty in Meters: 28874.00000.

Kern, California: 35.382412, -117.981889: : 7/2/2026: clayosc: 2 Jul 2026 ; Coordinate Uncertainty in Meters: 2974.00000.

Yavapai, Arizona: 34.309721, -112.951929: : 8/29/2025: James Hicks: 29 Aug 2025 ; Coordinate Uncertainty in Meters: 28846.00000.

Yavapai, Arizona: 34.158911, -112.905873: : 8/29/2025: James Hicks: 29 Aug 2025 ; Coordinate Uncertainty in Meters: 28874.00000.

Kern, California: 35.363743, -117.984597: : 4/4/2026: Olivia Miseroy: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

San Bernardino, California: 34.546886, -115.789442: : 3/7/2026: keiralanenorrell: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 161.00000.

San Bernardino, California: 35.200705, -115.872703: : 9/28/2025: marleyjanssen: 28 Sep 2025 ; Coordinate Uncertainty in Meters: 5.00000.

Clark, Nevada: 35.226451, -114.62526: : 7/14/2026: Steven A Lovelace: 14 Jul 2026 ; Coordinate Uncertainty in Meters: 28706.00000.

Occurrence Remarks: Juvenile Chuckwalla found basking, but moved into shade of rock when spotted; Coordinate Uncertainty in Meters: 192.00000.

Inyo, California: 36.402472, -117.284332: : 3/9/2026: Ben Schmandt: 9 Mar 2026 ; Coordinate Uncertainty in Meters: 721.00000.

GBIFID: 3743034580; Occurrence Remarks: Stuck in a crack so I had to turn my brightness all the way up to see it on camera.;; Coordinate Uncertainty in Meters: 28563.00000.

Clark, Nevada: 36.165497, -114.717757: : 8/17/2025: Donavuan Salazar: 17 Aug 2025 ; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4103310331; Occurrence Remarks: Death Valley National Park, California, USA;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 1883495665; Occurrence Remarks: A young individual found scurrying between a couple of small boulders.;; Coordinate Uncertainty in Meters: 500.00000.

Washington, Utah: 37.095466, -113.909643: : 4/27/2026: Phatteus: 27 Apr 2026 ; Coordinate Uncertainty in Meters: 240.00000.

Inyo, California: 36.861339, -118.067534: : 3/28/2026: california_every_reptile: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 28476.00000.

Inyo, California: 36.355782, -116.795387: : 5/30/2026: Tom Benson: 30 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Coconino, Arizona: 36.935069, -111.501714: : 5/22/2026: Andrew R. Milner: 22 May 2026 ; Coordinate Uncertainty in Meters: 16.00000.

Inyo, California: 36.644238, -117.598192: : 4/5/2026: seadana: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 35.992914, -117.160114: : 4/15/2026: John Kelly: 15 Apr 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Washington, Utah: 37.037814, -113.522201: : 4/25/2026: colorful-corvid: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Two in the crack; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 36.72901, -118.14036: : 5/13/2026: Tim Brown: 13 May 2026 ; Coordinate Uncertainty in Meters: 39686.00000.

Inyo, California: 35.971625, -117.908792: : 5/21/2026: sarichar: 21 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Washington, Utah: 37.120115, -113.588395: : 5/25/2026: timothyjolin: 25 May 2026 ; Coordinate Uncertainty in Meters: 330.00000.

Mohave, Arizona: 36.032776, -113.825043: : 5/2/2026: Caity Zimmermann: 2 May 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.332005, -116.805672: : 5/29/2026: Wade Olsson: 29 May 2026 ; Coordinate Uncertainty in Meters: 9.00000.

Coconino, Arizona: 36.73791, -111.710843: : 5/30/2026: Kathleen Slocum: 30 May 2026 ; Coordinate Uncertainty in Meters: 614.00000.

GBIFID: 3747178424; Occurrence Remarks: Dead on road DOR;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4096995357; Occurrence Remarks: At Point of Rocks;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3747029112; Occurrence Remarks: Dead on road DOR;; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Common Chuckwalla (Sauromalus ater), Movie Road, Alabama Hills, Lone Pine, CA.; Coordinate Uncertainty in Meters: 1.11000.

Inyo, California: 36.584575, -118.115533: : 4/10/2025: Dan Sandri: 10 Apr 2025 ; Coordinate Uncertainty in Meters: 17.00000.

Clark, Nevada: 36.107279, -115.548237: : 5/16/2025: Matthew Brinton: 16 May 2025 ; Coordinate Uncertainty in Meters: 28592.00000.

Clark, Nevada: 36.025982, -115.550594: : 5/16/2025: Matthew Brinton: 16 May 2025 ; Coordinate Uncertainty in Meters: 28592.00000.

Inyo, California: 36.333308, -116.813837: : 2/12/2026: jadedplant: 12 Feb 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 36.247842, -116.720283: : 2/14/2026: invernity: 14 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Coconino, Arizona: 36.347416, -112.451987: : 5/30/2025: Brian Sidlauskas: 30 May 2025 ; Coordinate Uncertainty in Meters: 61.00000.

Inyo, California: 36.71385, -116.960728: : 2/28/2026: Erica Van Loon: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Inyo, California: 36.612675, -118.1239: : 3/4/2026: hannafei: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 36.776677, -117.14208: : 3/2/2026: Cat Chang: 2 Mar 2026 ; Coordinate Uncertainty in Meters: 33149.00000.

Unknown, Nevada: 36.029393, -114.708444: : 3/4/2026: Aron Gamble: 4 Mar 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

Nye, Nevada: 36.440253, -116.252457: : 3/7/2026: Denise Williams: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 36.264708, -116.718875: : 3/9/2026: Eric William Bartram: 9 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.267086, -116.718831: : 3/9/2026: Eric William Bartram: 9 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.822013, -117.174028: : 3/10/2026: kssqrd: 10 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.832152, -117.172397: : 3/10/2026: kssqrd: 10 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.45932, -116.772637: : 3/7/2026: aarenas: 7 Mar 2026 ; Coordinate Uncertainty in Meters: 14.00000.

Inyo, California: 36.464837, -116.761458: : 3/13/2026: Deb Kemp: 13 Mar 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Inyo, California: 36.470172, -116.752905: : 3/13/2026: Deb Kemp: 13 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Inyo, California: 36.822622, -117.161468: : 3/2/2026: sea-kangaroo: 2 Mar 2026 ; Coordinate Uncertainty in Meters: 7.00000.

Clark, Nevada: 36.047597, -114.972756: : 4/10/2026: whereintarnation: 10 Apr 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

Occurrence Remarks: A dark lizard with a large gut and paler tail basking on top of a rock pile at Fossil Falls in CA.; Coordinate Uncertainty in Meters: 1263.00000.

Inyo, California: 36.336308, -116.502389: : 4/7/2026: Alex Bairstow: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 5.00000.

Clark, Nevada: 36.423329, -114.12336: : 4/25/2026: EscalanteSlim: 25 Apr 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Coconino, Arizona: 36.946187, -111.484337: : 5/3/2026: brotha_nature: 3 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 35.981397, -117.918199: : 4/30/2026: Lshoemaker: 30 Apr 2026 ; Coordinate Uncertainty in Meters: 1666.00000.

Inyo, California: 35.973903, -117.914663: : 5/6/2026: mojavemama: 6 May 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Clark, Nevada: 36.419582, -114.435679: : 5/7/2026: desert_hambone: 7 May 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.459166, -114.46194: : 5/7/2026: desert_hambone: 7 May 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 35.973452, -117.912844: : 4/22/2026: James Bailey: 22 Apr 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Clark, Nevada: 36.546835, -114.449709: : 5/7/2026: desert_hambone: 7 May 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 36.613878, -118.125444: : 5/24/2025: joey pon: 24 May 2025 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 35.981701, -117.919194: : 4/30/2026: Lshoemaker: 30 Apr 2026 ; Coordinate Uncertainty in Meters: 877.00000.

Washington, Utah: 37.066197, -113.886245: : 5/12/2026: herpinghecticyt: 12 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Washington, Utah: 37.066581, -113.555772: : 5/16/2026: Madison: 16 May 2026 ; Coordinate Uncertainty in Meters: 8.00000.

Inyo, California: 36.567444, -117.136562: : 2/13/2026: Christopher J. Earle: 13 Feb 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Clark, Nevada: 36.367612, -114.410186: : 3/16/2026: Bryan Hamilton: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 28563.00000.

Clark, Nevada: 36.359783, -114.505342: : 3/16/2026: Bryan Hamilton: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 28563.00000.

Mohave, Arizona: 36.032392, -113.825562: : 3/16/2026: Ashwin Srinivasan: 16 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 36.33946, -117.479387: : 3/14/2026: micahasplund: 14 Mar 2026 ; Coordinate Uncertainty in Meters: 1382.00000.

Inyo, California: 36.567453, -117.135998: : 3/24/2026: Austin Koontz: 24 Mar 2026 ; Coordinate Uncertainty in Meters: 6.00000.

Inyo, California: 36.829798, -117.174259: : 2/28/2026: jomance: 28 Feb 2026 ; Coordinate Uncertainty in Meters: 38.00000.

Inyo, California: 36.567937, -117.136863: : 3/27/2026: Craig Martin: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.26948, -116.720162: : 3/28/2026: David Rockow: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 35.971675, -117.910349: : 3/28/2026: weevilwizarding: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 73.00000.

Occurrence Remarks: fat !; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Field No. LGN 26-22; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.077538, -114.93581: : 3/31/2026: katherineruiz: 31 Mar 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

Inyo, California: 36.748645, -117.525764: : 4/1/2026: jenniferofthemeadow: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Clark, Nevada: 36.587466, -114.585172: : 4/1/2026: lenacharice: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Occurrence Remarks: Least afraid male; Coordinate Uncertainty in Meters: 1084.00000.

Clark, Nevada: 36.488062, -114.530724: : 4/3/2026: toadcatcher: 3 Apr 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.132648, -115.53596: : 4/4/2026: Heather Griesbach: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

Occurrence Remarks: Death Valley; Coordinate Uncertainty in Meters: 1.11000.

Occurrence Remarks: Seen basking on top of a rocky and sunny outcroping. A dark lizard with a large stomach. The tail section was a grey color and a second lizard came out of the rocks and laid nearby as we were looking. Possible mating pair?; Coordinate Uncertainty in Meters: 778.00000.

Coconino, Arizona: 36.101893, -111.83088: : 4/4/2026: Jack Byrley: 4 Apr 2026 ; Coordinate Uncertainty in Meters: 3326.00000.

Inyo, California: 36.61073, -118.121644: : 4/5/2026: notacop: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 16.00000.

Inyo, California: 36.610867, -118.121667: : 4/5/2026: notacop: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 36.347898, -117.337516: : 4/7/2026: rmooi: 7 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 36.495958, -116.684006: : 3/15/2026: Kyle Brine: 15 Mar 2026 ; Coordinate Uncertainty in Meters: 0.11000.

Occurrence Remarks: Fossil Falls 2nd of three seen; Coordinate Uncertainty in Meters: 8.00000.

Occurrence Remarks: *Sauromalus ater* sp. lifer.; Coordinate Uncertainty in Meters: 0.11000.

Inyo, California: 36.224823, -116.725797: : 3/24/2025: Emily Langdon-Lassagne: 24 Mar 2025 ; Coordinate Uncertainty in Meters: 8.00000.

Inyo, California: 36.224845, -116.725815: : 3/24/2025: Emily Langdon-Lassagne: 24 Mar 2025 ; Coordinate Uncertainty in Meters: 15.00000.

Inyo, California: 36.224851, -116.725831: : 3/24/2025: Emily Langdon-Lassagne: 24 Mar 2025 ; Coordinate Uncertainty in Meters: 8.00000.

Coconino, Arizona: 36.93321, -111.480353: : 6/1/2026: Steve Mayo: 1 Jun 2026 ; Coordinate Uncertainty in Meters: 466.00000.

Clark, Nevada: 36.474153, -114.591374: : 6/6/2026: Karolina Fucikova: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.044137, -115.585321: : 6/5/2026: lonnyholmes: 5 Jun 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

Clark, Nevada: 36.417902, -114.430448: : 6/6/2026: Bill Ryerson: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.419, -114.41441: : 6/6/2026: Bill Ryerson: 6 Jun 2026 ; Coordinate Uncertainty in Meters: 28534.00000.

Occurrence Remarks: Is this a chuckwalla or gila monster?; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 36.517413, -117.825325: : 6/19/2026: Peter Towle: 19 Jun 2026 ; Coordinate Uncertainty in Meters: 2.00000.

Occurrence Remarks: Needs subspecies. Along Colorado River below Glen Canyon dam.; Coordinate Uncertainty in Meters: 5549.00000.

Inyo, California: 36.603242, -118.118264: : 10/4/2025: MojaveMisanthrope: 4 Oct 2025 ; Coordinate Uncertainty in Meters: 3.00000.

Inyo, California: 35.972447, -117.91072: : 10/12/2025: bknapphsu: 12 Oct 2025 ; Coordinate Uncertainty in Meters: 4.00000.

Inyo, California: 36.217013, -116.729392: : 4/23/2026: Terry Loeb: 23 Apr 2026 ; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1836625830; Occurrence Remarks: Ran under a large rock when I walked by, eventually came out then ran to another rock.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 1837753101; Occurrence Remarks: Fall canyon Trailhead at exit of Titus Canyon, Death Valley;; Coordinate Uncertainty in Meters: 313.00000.

GBIFID: 1837753064; Occurrence Remarks: Fall canyon. Death Valley NP;; Coordinate Uncertainty in Meters: 102.00000.

GBIFID: 3499596578; Occurrence Remarks: With Salvia funerea.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3499743344; Occurrence Remarks: Reptilia Orange/Brown Coloration Spotted Back & Striped Tail Scaly Skin Located near water source;; Coordinate Uncertainty in Meters: 105.00000.

GBIFID: 1838042681; Occurrence Remarks: First one Ive seen this spring. Very big!;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3747224336; Occurrence Remarks: Dead on road DOR;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 3747380502; Occurrence Remarks: Eating fresh grass.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3759365415; Occurrence Remarks: Which Chuckwalla is this?;; Coordinate Uncertainty in Meters: 120846.00000.

GBIFID: 3760015688; Occurrence Remarks: Two individuals were basking on this rock before wedging themselves into a crack as I approached. Note the separate tail in pic #3.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3764371108; Occurrence Remarks: Emaciated individual. Caught for observational purpose for BioBlitz 2022 and released. Likely a victim of the extended drought.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3764515095; Occurrence Remarks: Found resting inside of a rocky den. Second photo is its assumed tracks.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3773048849; Occurrence Remarks: 90 degrees with a breeze at 2:53pm;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1088900988; Occurrence Remarks: Amazing place;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3881829864; Occurrence Remarks: Fast, Has webby loose skin.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3889195776; Occurrence Remarks: one of three found stuck in the bottom of a pipe;; Coordinate Uncertainty in Meters: 28476.00000.

GBIFID: 3889180735; Occurrence Remarks: one of three found stuck in the bottom of a pipe;; Coordinate Uncertainty in Meters: 28476.00000.

GBIFID: 3903031884; Occurrence Remarks: adult;; Coordinate Uncertainty in Meters: 1746.00000.

GBIFID: 1088929630; Occurrence Remarks: Small Chuckwalla;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1088929609; Occurrence Remarks: Two Chuckwallas sunning in late morning.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4062583501; Occurrence Remarks: Pictures taken by my dad on walks when I was younger/before I started taking many pictures myself. He gave them to me so I could upload them on inat.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4018202117; Occurrence Remarks: Cold and overcast. Chuckwalla was chilling in a footpath. Still alive;; Coordinate Uncertainty in Meters: 1.11000.

Clark, Nevada: 36.126769, -115.5164: : 4/5/2026: Alexandre Passos: 5 Apr 2026 ; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4076280007; Occurrence Remarks: Photo Credit: Rod Colvin/USFWS Volunteer;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4103288933; Occurrence Remarks: RX10_38584;; Coordinate Uncertainty in Meters: 28505.00000.

GBIFID: 4102914941; Occurrence Remarks: RX10_38645, RX10_38646, RX10_38647. Tracks in the sand.;; Coordinate Uncertainty in Meters: 28505.00000.

GBIFID: 1143519054; Occurrence Remarks: Large Chuckwalla sunning;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1092909243; Occurrence Remarks: Chuckwalla trying to hide;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1092909245; Occurrence Remarks: Female, gravid Chuckwalla;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1092909264; Occurrence Remarks: Chuckwalla, ? gravid female?;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4111667926; Occurrence Remarks: Devils Hole, Death Valley NP (at Ash Meadows NWR), Nye County, Nevada, elev. 2410 ft. Three individuals seen.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4014943302; Occurrence Remarks: Near La Pine Oregon. CORRECTION and UPDATE. This is from near Las Vegas Nevada, and is consistent with the sandstone.;; Coordinate Uncertainty in Meters: 33838.00000.

GBIFID: 1098909138; Occurrence Remarks: 12 different individuals observed this day.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1098909193; Occurrence Remarks: High up on red sandstone sunning on a hot day-95 to 100 degrees before noon.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4126677046; Occurrence Remarks: There was another lighter colored and less robust looking individual next to this one when I saw it. Presumably female. The one pictured did the pushup display when I first came across them. Pictured individual was not shy about being approached, but the other disappeared.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4127202841; Occurrence Remarks: Along Kraft Mountain Loop Trail;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4130084789; Occurrence Remarks: Warming by the sun on a cool morning.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1143519970; Occurrence Remarks: Hiding;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1143519971; Occurrence Remarks: 2nd of three observed today.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4145537950; Occurrence Remarks: Found at our campsite in Valley of Fire State Park.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4153853629; Occurrence Remarks: @crtracy;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 4153702688; Occurrence Remarks: Your risk of beaver attack while collecting chuckwallas is low, but never zero. See: https://www.inaturalist.org/observations/170939089 @crtracy;; Coordinate Uncertainty in Meters: 15.00000.

GBIFID: 4153477598; Occurrence Remarks: @crtracy;; Coordinate Uncertainty in Meters: 18.00000.

GBIFID: 4153633346; Occurrence Remarks: Chris had just finished telling me that unlike small lizards, Chuckwallas dont pop out early in the morning. Note the sun just having hit the spot where this lizard had emerged and started foraging....at 9 am.;; Coordinate Uncertainty in Meters: 13.00000.

GBIFID: 4165658172; Occurrence Remarks: What a monster. It was too big for my dvd-case photo board.;; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4405230864; Occurrence Remarks: 2018;; Coordinate Uncertainty in Meters: 24.00000.

GBIFID: 4407333072; Occurrence Remarks: Lizard eating leaves. Last two photos from Mike Hill.;; Coordinate Uncertainty in Meters: 21.00000.

GBIFID: 4458452862; Occurrence Remarks: Northern Chuckwalla Iguana (Sauromalus ater);; Coordinate Uncertainty in Meters: 1135.00000.

GBIFID: 4516424208; Occurrence Remarks: Well over 100 degrees in the Valley of Fire in Nevada. Went for a hike and found this little guy.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4519114055; Occurrence Remarks: Common Chuckwalla (Sauromalus ater), Valley of Fire State Park, Overton, Nevada.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4522734725; Occurrence Remarks: MikeÆs ob near Nautiloid canyon.;; Coordinate Uncertainty in Meters: 7.00000.

GBIFID: 4525223841; Occurrence Remarks: Chuckwalla or iguana jaw? And a little bit of the spine and scales. Found in a mix of coyote and fox scat (marking their territory over one another, I guess!) so not sure whoΓÇÖs exact scat it came out of;; Coordinate Uncertainty in Meters: 14.00000.

GBIFID: 4597339027; Occurrence Remarks: Spotted sunbathing in Red Rock Canyon, first pullout on the scenic loop, near the Grand Circle Trail;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4852546682; Occurrence Remarks: High 60ΓÇÖs, maybe 70 air temperature-wise and breezy so felt a little cool out, but sunny.;; Coordinate Uncertainty in Meters: 28563.00000.

GBIFID: 4852155028; Occurrence Remarks: Whatta guy;; Coordinate Uncertainty in Meters: 414.00000.

GBIFID: 4863844851; Occurrence Remarks: The tail has black and white rings;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4855154600; Occurrence Remarks: RX10_51987, RX10_51988;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 4863737156; Occurrence Remarks: In center of the frame on the rock;; Coordinate Uncertainty in Meters: 28563.00000.

GBIFID: 4863513873; Occurrence Remarks: Very large specimen.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4863350878; Occurrence Remarks: Huge Feller;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4863547336; Occurrence Remarks: bro is wedged (alive);; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4926150808; Occurrence Remarks: Tried to get a clear pic but the chucky looked pretty smug in the knowledge it was safe in the crevice;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4901046189; Occurrence Remarks: Found a bunch of crows picking at this guy in the narrows of Marble canyon. Figuring he fell (or was pushed!!) from a higher point;; Coordinate Uncertainty in Meters: 12.00000.

GBIFID: 4924120059; Occurrence Remarks: Alabama Hills Campsite;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2238936547; Occurrence Remarks: Green Valley Gap;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 4936195755; Occurrence Remarks: furthest north chuck in the Owens Valley on iNat;; Coordinate Uncertainty in Meters: 28447.00000.

GBIFID: 4950313976; Occurrence Remarks: 12-16ΓÇ¥ long head to tail, largest lizard of this body type I have seen;; Coordinate Uncertainty in Meters: 28476.00000.

GBIFID: 4953038951; Occurrence Remarks: This was a pretty big lizard! I think the white tail is dead skin that hadnΓÇÖt been successfully shed yet.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2242923086; Occurrence Remarks: Juvenile and adult female together in a crack. Near campsites along Bulldog Pass Road, just above Woodbury desert study area. Whole site burned hot several years ago.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 5008121016; Occurrence Remarks: Seems like a fair number of these meet an early demise in deep, narrow canyons?;; Coordinate Uncertainty in Meters: 25.00000.

GBIFID: 5063102475; Occurrence Remarks: May 2020. Lifer chuckwalla;; Coordinate Uncertainty in Meters: 70.00000.

GBIFID: 5063995459; Occurrence Remarks: Subject of photo is the dead lizard in the bush. The bush was on a ledge and I took the photo looking up. Lizard was dead. Not sure if it was dropped there or what. DoesnΓÇÖt appear to be pinned to the branch.;; Coordinate Uncertainty in Meters: 28476.00000.

GBIFID: 5064040885; Occurrence Remarks: Juvenile chuckwalla hiding under a rock;; Coordinate Uncertainty in Meters: 28476.00000.

GBIFID: 5104664153; Occurrence Remarks: S120_28294. Scats only. Scat was composed of vegetable matter.;; Coordinate Uncertainty in Meters: 28563.00000.

GBIFID: 2265863739; Occurrence Remarks: Roadkill;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 2265862869; Occurrence Remarks: This individual was found on the side of the road next to a road kill. We were very surprised to find two dead ChuckwallaΓÇÖs right next to each other. The second one had minimal external injuries.;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 5134589767; Occurrence Remarks: Field journal > 2025 April 03 > > Immature *Sauromalus ater* on the cliff face exiting Titus Canyon. Slightly dehydrated. Left some water after catch and release.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5133645925; Occurrence Remarks: It was basking in the road. Then it ran under the car! It was loving the carΓÇÖs shade. Then it ran over and sat in the shade of the creosote bush. 80 degrees at 12:31pm.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1262370592; Occurrence Remarks: Lizard;; Coordinate Uncertainty in Meters: 100.00000.

GBIFID: 5154043433; Occurrence Remarks: 2538 ft;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5153442357; Occurrence Remarks: Little baby guy. He came out all the way a little bit after.;; Coordinate Uncertainty in Meters: 28447.00000.

GBIFID: 1262376154; Occurrence Remarks: I like their spiky ears.;; Coordinate Uncertainty in Meters: 10.00000.

GBIFID: 5154889205; Occurrence Remarks: with @nacairns;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5153241006; Occurrence Remarks: with @nacairns;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5154445229; Occurrence Remarks: with @nacairns;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5154151774; Occurrence Remarks: Same as https://www.inaturalist.org/observations/280528532;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5168413472; Occurrence Remarks: Grand Canyon;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5168327127; Occurrence Remarks: Grand Canyon;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 5168456386; Occurrence Remarks: Found basking next to the trail around 11 AM;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5167800053; Occurrence Remarks: Around 82 degrees at 11:23am;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5167887311; Occurrence Remarks: Low 80ΓÇÖs at 10:45am;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5168255662; Occurrence Remarks: Maybe juveniles?;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 5176582025; Occurrence Remarks: 93 degrees at 12:09pm. I saw it peaking its head out (3rd and 4th pictures). Then followed it over to this spot on the rock and it let me get close for some cute photos. Sweet moment.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1265547651; Occurrence Remarks: Immature Common Chuckwalla sunning on the rocks.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2283280844; Occurrence Remarks: 109 degrees today. The shade is looked for by all.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5187601686; Occurrence Remarks: looking extremely deflated juveline? location did not save - within 1.5 miles of Fall Canyon mouth;; Coordinate Uncertainty in Meters: 347.00000.

GBIFID: 5199041765; Occurrence Remarks: playing dead;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1265577791; Occurrence Remarks: Sunning on a vertical red sandstone wall.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1315047765; Occurrence Remarks: Beautiful juvenile Chuckwalla sunning in a depression in the red sandstone.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1265577963; Occurrence Remarks: Seven Chucks seen, six appear to be juvenile and only one was a medium sized adult. All observed in a 100 foot radius on the red sandstone cliffs and ledges.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5231114148; Occurrence Remarks: Lizard was visible on rock, slipped into a crack before I could get a photo. Truck temp was measuring high 90s.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 5230970500; Occurrence Remarks: You can see the tail in between the rocks!;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1269543213; Occurrence Remarks: Hiding in red sandstone hole;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1273844411; Occurrence Remarks: 5+ Chuckwalla;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1273850027; Occurrence Remarks: I might be wrong about this, but it was a large, stout iguana-looking lizard. Its body was at least 9-10 inches long without the tail.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2447952820; Occurrence Remarks: Petroglyph Canyon via Mouses Tank Trail, Valley of Fire State Park;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1291136885; Occurrence Remarks: Female.;; Coordinate Uncertainty in Meters: 352.00000.

GBIFID: 1572330362; Occurrence Remarks: A female;; Coordinate Uncertainty in Meters: 229.00000.

GBIFID: 2579223556; Occurrence Remarks: Lizard approx. 1 foot long with a gray-ish skin tone. Subtle dark &light grey pattern on the abdomen with a white-tip tail.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1305175887; Occurrence Remarks: Note reddish & pink colored scales.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1305175931; Occurrence Remarks: Chuck eating Acacia (Senegalia greggii);; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1305175930; Occurrence Remarks: Very large older Chuck.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1453287129; Occurrence Remarks: Young;; Coordinate Uncertainty in Meters: 2170.00000.

GBIFID: 2634449756; Occurrence Remarks: Basking on rock.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 4936417460; Occurrence Remarks: Valley of Fire State Park;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2803129643; Occurrence Remarks: Big baby!!!;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2814025636; Occurrence Remarks: Big lizard scrambling up rocks at GCNP - C. Chuckwalla most likely;; Coordinate Uncertainty in Meters: 5342.00000.

GBIFID: 891041616; Occurrence Remarks: founded at the bottom of canyon;; Coordinate Uncertainty in Meters: 172707.00000.

GBIFID: 1453506038; Occurrence Remarks: Attempting to mate;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1453506029; Occurrence Remarks: Feeding;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1453506085; Occurrence Remarks: Very beautiful, colorful chuck.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 2826513344; Occurrence Remarks: 108 degrees at 5:42pm. IΓÇÖm driving, 50 mph speed limit, rocky landscape on either side of me. To my right, about 1/2 a mile away, thereΓÇÖs some canyons. ItΓÇÖs 108 degrees with the sun out, not really expecting to see any wildlife. Anyways, this chuckwalla DARTS IN FRONT OF ME out of a flat rocky area, I had no time to react. I thought for sure I hit it but didnΓÇÖt hear a noise. I look in my review mirror and see it in the road, I turn around to go look at it and I DIDNT HIT IT! It scurries off the road and onto the shoulder where I take pics. Its tail seems to have been cut off at some other point in its life and healed over. Or just peeling(?). It sits there. I go back to my vehicle to grab a glove so I can inspect it to make sure it is okay. I come back and the chuckwalla sees the glove - it knows IΓÇÖm gonna pick it up. It runs under a creosote bush and hides≡ƒñúIΓÇÖm pretty sure it was okay and just shaken up haha Anyone would have been in disbelief to see a chuck in that area, at that temperature I am sure! Practically flat desert.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1457621757; Occurrence Remarks: Quite thin tail!;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1562888729; Occurrence Remarks: On the trail from Dantes View to Mt. Perry;; Coordinate Uncertainty in Meters: 2665.00000.

GBIFID: 1562888804; Occurrence Remarks: Chuckwalla I rescued from the drain in a laundry room. It was released within 0.25 miles of the capture site.;; Coordinate Uncertainty in Meters: 2.00000.

GBIFID: 1500290640; Occurrence Remarks: On the trail from Dantes View to Mt. Perry;; Coordinate Uncertainty in Meters: 2243.00000.

GBIFID: 1500290616; Occurrence Remarks: Near the Rainbow Canyon dirt parking lot overlook;; Coordinate Uncertainty in Meters: 411.00000.

GBIFID: 1500308981; Occurrence Remarks: Observed next to Deer Creek just above The Patio.;; Coordinate Uncertainty in Meters: 350.00000.

GBIFID: 1500314304; Occurrence Remarks: Observed in North Canyon. A young un!;; Coordinate Uncertainty in Meters: 500.00000.

GBIFID: 1500314357; Occurrence Remarks: Observed in Lava Canyon.;; Coordinate Uncertainty in Meters: 1000.00000.

GBIFID: 3398724344; Occurrence Remarks: Young.;; Coordinate Uncertainty in Meters: 33428.00000.

GBIFID: 2981064132; Occurrence Remarks: Scientific Name: Sauromalus obesus Classification: Reptile - lizard Life Span: Approximately 15 years Description: This species has a flattened body with a blunt-tipped and broad tail. Loose skins are on the side of the speciesΓÇÖ flattened body. Female skin has less coloration than male skin. Males are generally colored light gray with orange, yellow and red hues. The male skin hues depend on locality. The male chuckwallas also have femoral pores on their inner thigh which release secretions to mark areas. Juvenile chuckwallasΓÇÖ tails are banded with yellow and black. The tails of juvenile chuckwallas are banded with black and yellow. Habitat: Rocky areas within the great basin, mohave, and sonoran deserts. Range: Southern Nevada, Western Arizona, Southeastern California, Southern Utah, and Northwestern Mexico. Natural History: The chuckwalla is a diurnal lizard. During winter, they go into hibernation. During hotter climates, rock crevices provide shelter and shade for the lizard. In times of extreme heat, they are inactive. Food Habits: Chuckwallas are herbivores and occasionally insectivores. Breeding: Mating occurs around early summer. 5 to 16 eggs are laid underground after a month. Males reach breeding age at approximately two years of age, while females take about five years. A female may breed only once every other year. Status: Currently unprotected in nevada. This species is being considered for a change of status to ΓÇ£species of concernΓÇ¥ in nevada. Reason for Status: Habitat loss and considerable collection pressure for the pet trade threaten this species. Fun Facts: A chuckwalla inserts itself into a rock crevice and sucks in air to inflate its body. Inflation of its body helps prevent predators to easily carry the chuckwallaΓÇÖs body.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 1572389386; Occurrence Remarks: Eating a plant;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3058895226; Occurrence Remarks: RX10_03744;; Coordinate Uncertainty in Meters: 28534.00000.

Inyo, California: 36.217567, -116.729278: : 3/27/2026: hpycmpr: 27 Mar 2026 ; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 1580501788; Occurrence Remarks: Only one see all morning. Too hot. 95 degrees at sunrise.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3061802450; Occurrence Remarks: Red Rock Canyon;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3061523109; Occurrence Remarks: Red Rock Canyon;; Coordinate Uncertainty in Meters: 28563.00000.

GBIFID: 3070770266; Occurrence Remarks: Baby chuck roadkill :(;; Coordinate Uncertainty in Meters: 40.00000.

GBIFID: 3079492285; Occurrence Remarks: White Domes Trail;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 3079825906; Occurrence Remarks: Juvenile?;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3090545051; Occurrence Remarks: Mosaic Canyon;; Coordinate Uncertainty in Meters: 1953.00000.

GBIFID: 3097181588; Occurrence Remarks: Two juveniles;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3112706443; Occurrence Remarks: In Surprise Canyon;; Coordinate Uncertainty in Meters: 38.00000.

GBIFID: 3109190115; Occurrence Remarks: RX10_09926;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3109179109; Occurrence Remarks: RX10_09921, RX10_09922;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 3118382505; Occurrence Remarks: Three individuals ranging in size from about 9 inches to 13 inches. The one in the third photo had climbed into a bush to eat what appeared to be small flowers. They were all very comfortable with me being there, possibly due to living near a very high use trail.;; Coordinate Uncertainty in Meters: 28592.00000.

GBIFID: 3117791967; Occurrence Remarks: Found in a crevice between rocks, used my flashlight to see it.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 3307163579; Occurrence Remarks: Striped tail;; Coordinate Uncertainty in Meters: 6.00000.

GBIFID: 1024330414; Occurrence Remarks: Chuckawalla sunning on red sandstone rock.;; Coordinate Uncertainty in Meters: 28534.00000.

GBIFID: 1802750601; Occurrence Remarks: Lizard found along Colorado River in Grand Canyon;; Coordinate Uncertainty in Meters: 65618.00000.

GBIFID: 1802750597; Occurrence Remarks: Lizard found along the Colorado River in the Grand Canyon;; Coordinate Uncertainty in Meters: 65618.00000.

GBIFID: 3384690303; Occurrence Remarks: Hidden under rock.;; Coordinate Uncertainty in Meters: 1102.00000.

GBIFID: 3384790762; Occurrence Remarks: Hid when I approached;; Coordinate Uncertainty in Meters: 28447.00000.

Washington, Utah: 37.076967, -113.454426: : 8/29/2025: Chris Frauenhofer: 29 Aug 2025 ; Coordinate Uncertainty in Meters: 28447.00000.

Nye, Nevada: 36.459107, -116.100083: : 8/8/2025: Courtney Christie: 8 Aug 2025 ; Coordinate Uncertainty in Meters: 28534.00000.

Nye, Nevada: 36.424027, -116.169412: : 8/8/2025: Courtney Christie: 8 Aug 2025 ; Coordinate Uncertainty in Meters: 28534.00000.

Clark, Nevada: 36.180643, -114.720092: : 9/8/2025: seelke_smooth: 8 Sep 2025 ; Coordinate Uncertainty in Meters: 28592.00000.

Occurrence Remarks: Fossil Falls One of three seen; Coordinate Uncertainty in Meters: 8.00000.

Nye, Nevada: 37.26852, -117.09176: : 10/7/2025: Bryan Hamilton: 7 Oct 2025 ; Coordinate Uncertainty in Meters: 28417.00000.

Washington, Utah: 37.174562, -113.860282: : 4/17/2026: Grant Chovil: 17 Apr 2026 ; Coordinate Uncertainty in Meters: 28447.00000.

Washington, Utah: 37.183039, -113.652807: : 3/28/2026: braydenearl: 28 Mar 2026 ; Coordinate Uncertainty in Meters: 83.00000.

Washington, Utah: 37.215714, -113.650468: : 6/7/2026: Bill Ryerson: 7 Jun 2026 ; Coordinate Uncertainty in Meters: 1248.00000.

Esmeralda, Nevada: 37.391131, -117.196296: : 10/7/2025: Bryan Hamilton: 7 Oct 2025 ; Coordinate Uncertainty in Meters: 28417.00000.

Washington, Utah: 37.139175, -113.605084: : 3/26/2026: punkrockcreep: 26 Mar 2026 ; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 3759595711; Occurrence Remarks: Not as good at wedging into rocks as an adult.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4430544780; Occurrence Remarks: I was looking at the erosion on this rock, and there was a face staring back at me.;; Coordinate Uncertainty in Meters: 28447.00000.

GBIFID: 4465418987; Occurrence Remarks: Found during field research;; Coordinate Uncertainty in Meters: 49624.00000.

GBIFID: 5154206486; Occurrence Remarks: Same as https://www.inaturalist.org/observations/278884602 Location is inaccurate;; Coordinate Uncertainty in Meters: 1088.00000.