Wyoming
Snakes in Crook County
9 species have been documented here, 1 of them venomous.
Venomous snakes in Crook County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Crook County

Gopher Snake
Pituophis catenifer
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

North American Racer
Coluber constrictor
Harmless

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Pine Snake
Pituophis melanoleucus
Harmless

Western Milksnake
Lampropeltis gentilis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.