Colorado
Snakes in Garfield County
7 species have been documented here, 1 of them venomous.
Venomous snakes in Garfield 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.
Every snake recorded in Garfield County

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Gopher Snake
Pituophis catenifer
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

North American Racer
Coluber constrictor
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Western Rattlesnake
Crotalus oreganus
Venomous

Western Milksnake
Lampropeltis gentilis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Garfield County: FAQ
- Are there venomous snakes in Garfield County, Colorado?
- Yes. 1 venomous snake species has verified records in Garfield County, Colorado, including Western Rattlesnake. Most snakes in Garfield County, Colorado, however, are harmless.
- How many snake species live in Garfield County, Colorado?
- 7 snake species have verified records in Garfield County, Colorado, of which 1 is venomous.
- What is the most commonly seen snake in Garfield County, Colorado?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Garfield County, Colorado, based on verified wildlife observations.
- What should I do if I see a venomous snake in Garfield County, Colorado?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.