Reptiles & Amphibians of Yellowstone National Park
The reptiles & amphibians most often spotted in Yellowstone, ranked by recent research-grade observations.
Most-observed reptiles & amphibians in Yellowstone
Western Terrestrial Garter Snake
Thamnophis elegans
368 observations
Columbia Spotted Frog
Rana luteiventris
286 observations
Gopher Snake
Pituophis catenifer
203 observations
Western Toad
Anaxyrus boreas
114 observations
Boreal Chorus Frog
Pseudacris maculata
109 observations
Western Tiger Salamander
Ambystoma mavortium
97 observations · iNaturalist
Common Sagebrush Lizard
Sceloporus graciosus
54 observations
Northern Rubber Boa
Charina bottae
16 observations
Plains Spadefoot
Spea bombifrons
13 observations
Prairie Rattlesnake
Crotalus viridis
11 observations
North American Racer
Coluber constrictor
3 observations
Common Garter Snake
Thamnophis sirtalis
1 observation