New Mexico
Snakes in San Miguel County
31 species have been documented here, 2 of them venomous.
Venomous snakes in San Miguel County
Full guide & what to do if bitten →
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy 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 San Miguel County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Ground Snake
Sonora semiannulata
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Gopher Snake
Pituophis catenifer
Harmless
Lined Snake
Tropidoclonion lineatum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Sinaloan Nightsnake
Hypsiglena torquata
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Texas Blind Snake
Rena dulcis
Harmless
Long-nosed Snake
Rhinocheilus lecontei
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Plains Black-headed Snake
Tantilla nigriceps
Harmless
Tantilla selmae
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Black-necked Garter Snake
Thamnophis cyrtopsis
Harmless
Glossy Snake
Arizona elegans
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Desert Kingsnake
Lampropeltis splendida
Harmless
Plains Hognose Snake
Heterodon nasicus
Harmless
Great Plains Ground Snake
Sonora episcopa
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
North American Racer
Coluber constrictor
Harmless
Chihuahuan Nightsnake
Hypsiglena jani
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.