The western terrestrial garter snake (Thamnophis elegans) is a western North American species of colubrid snake. At least five subspecies are currently recognized.
Continent: Middle-America North-America
Distribution: W USA (Washington, Oregon, Montana), SW Canada,
Mexico (Baja California Norte)
Has been found in 3990 m elevation.
vagrans: W USA (Washington, Nevada, NW New Mexico), W Canada (British Columbia, Saskatchewan, Alberta)