Washington
Snakes in Chelan County
10 species have been documented here, 2 of them venomous.
Venomous snakes in Chelan 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 Chelan County

Gopher Snake
Pituophis catenifer
Harmless

Western Rattlesnake
Crotalus oreganus
Venomous

North American Racer
Coluber constrictor
Harmless

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Northern Rubber Boa
Charina bottae
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Common Sharp-tailed Snake
Contia tenuis
Harmless

Desert Nightsnake
Hypsiglena chlorophaea
Harmless

Northwestern Garter Snake
Thamnophis ordinoides
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.