Colorado
Snakes in Las Animas County
26 species have been documented here, 2 of them venomous.
Venomous snakes in Las Animas 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.
Western MassasaugaSistrurus tergeminusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Las Animas County

Lined Snake
Tropidoclonion lineatum
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Gopher Snake
Pituophis catenifer
Harmless

Plains Black-headed Snake
Tantilla nigriceps
Harmless

Tantilla selmae
Harmless

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Common Coachwhip
Masticophis flagellum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Long-nosed Snake
Rhinocheilus lecontei
Harmless

Great Plains Ground Snake
Sonora episcopa
Harmless

Glossy Snake
Arizona elegans
Harmless

North American Racer
Coluber constrictor
Harmless

Chihuahuan Nightsnake
Hypsiglena jani
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Black-necked Garter Snake
Thamnophis cyrtopsis
Harmless

Plains Hognose Snake
Heterodon nasicus
Harmless

Western Milksnake
Lampropeltis gentilis
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Pine Snake
Pituophis melanoleucus
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Ground Snake
Sonora semiannulata
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Western Massasauga
Sistrurus tergeminus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.