Colorado
Snakes in Delta County
14 species have been documented here, 2 of them venomous.
Venomous snakes in Delta 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 Delta County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Great Plains Ratsnake
Pantherophis emoryi
Harmless
North American Racer
Coluber constrictor
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Striped Whipsnake
Masticophis taeniatus
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Southwestern Blackhead Snake
Tantilla hobartsmithi
Harmless
Tantilla selmae
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.