NPS/Jeff Arnold 
Rubber Boa
Rubber boas are usually found in rocky areas near streams or rivers with nearby shrubs or trees. 
Bullsnake
Bullsnakes are often mistaken for rattlesnakes because of their appearance and behavior. 
Prairie Rattlesnake
Prairie rattlesnakes are the only dangerously venomous snakes in Yellowstone. 
Sagebrush Lizard
The sagebrush lizard is the only lizard in Yellowstone. 
Common Gartersnake
Common gartersnakes are only found in southern parts of the park. 
Reptiles
There are six reptile species in Yellowstone. |
Last updated: July 21, 2020