Colorado
Snakes in Mesa County
17 species have been documented here, 2 of them venomous.
Venomous snakes in Mesa County
Full guide & what to do if bitten →
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Mesa County
Gopher Snake
Pituophis catenifer
Harmless
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
North American Racer
Coluber constrictor
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Pine Snake
Pituophis melanoleucus
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Southwestern Blackhead Snake
Tantilla hobartsmithi
Harmless
Tantilla selmae
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Desert Nightsnake
Hypsiglena chlorophaea
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.