Western terrestrial garter snake
- kingdom: Animalia
- phylum: Chordata
- class: Reptilia
- order: Squamata
- family: Natricidae
- genus: Thamnophis
- species: Thamnophis elegans
Campbell River- Chilliwack
- Creston
- Kamloops
- Oliver
- Osoyoos
- Parksville
- Summerland
- Victoria
British Columbia
Canada
La Ciudad
Durango
Mexico
Alameda- Albany
- Alturas
- Amesti
- Anderson
- Arcata
- Arnold
- Arroyo Grande
- Ashland
- Bayview
- Belvedere
- Benicia
- Berkeley
- Big Bear Lake
- Black Point-Green Point
- Bodega Bay
- Bolinas
- Bonny Doon
- Boulder Creek
- Brisbane
- Broadmoor
- Brookdale
- Buena Vista
- Callender
- Capitola
- Carmel-by-the-Sea
- Castro Valley
- Cherryland
- Chico
- Colma
- Colusa
- Corte Madera
- Cutten
- Daly City
- Del Monte Forest
- Downieville
- East Foothills
- East Palo Alto
- East Richmond Heights
- El Cerrito
- El Granada
- El Sobrante
- Elverta
- Eureka
- Fairfax
- Felton
- Ferndale
- Fort Bragg
- Fresno
- Galt
- Gilroy
- Guadalupe
- Guerneville
- Half Moon Bay
- Hayfork
- Hillsborough
- Humboldt Hill
- Interlaken
- Inverness
- Jamestown
- Kensington
- Kentfield
- La Selva Beach
- Lafayette
- Laguna
- Lake Arrowhead
- Larkspur
- Lexington Hills
- Live Oak
- Lone Pine
- Mammoth Lakes
- Marin City
- Marina
- McCloud
- McKinleyville
- Menlo Park
- Middletown
- Mill Valley
- Millbrae
- Milpitas
- Montara
- Monte Rio
- Monterey
- Morada
- Moraga
- Morro Bay
- Moss Beach
- Mount Hermon
- Myrtletown
- Oakland
- Oceano
- Opal Cliffs
- Orangevale
- Orinda
- Orland
- Pacific Grove
- Pacifica
- Palo Alto
- Petaluma
- Piedmont
- Pine Hills
- Portola Valley
- Red Bluff
- Redding
- Richmond
- Rio Dell
- Rio Linda
- Rollingwood
- Roseville
- Ross
- Running Springs
- Saint Helena
- San Anselmo
- San Bruno
- San Francisco
- San Jose
- San Leandro
- San Pablo
- Santa Cruz
- Saranap
- Sausalito
- Sea Ranch
- Sebastopol
- Shasta Lake
- Soquel
- South Lake Tahoe
- South San Francisco
- Stanford
- Strawberry
- Sunnyside-Tahoe City
- Tahoma
- Tamalpais Valley
- Tamalpais-Homestead Valley
- Tiburon
- Twin Lakes
- Watsonville
- Weed
- West Bishop
- West Menlo Park
- Westhaven-Moonstone
- Woodacre
California
United States