CaliforniaHerps.com

A Guide to the Amphibians
and Reptiles of California





Western Rattlesnakes (Crotalus oreganus) in California

 










observation link

 

Venomous and Potentially Dangerous!
This dangerously venomous snake occurs throughout California, excluding the southern deserts. It lives in a wide variety of habitats - mountains, forests, chaparral, sagebrush, grasslands, woodlands - and and often occurs in close proximity to humans. It can be active day or night.

Check the range map below to determine which subspecies occurs in your area.

Look here for information about identifying the three subspecies found in California.

snake snake snake
Northern Pacific Rattlesnake -  Crotalus oreganus oreganus
snake snake snake
Southern Pacific Rattlesnake - Crotalus oreganus helleri
snake snake snake
© Brad Alexander
Great Basin Rattlesnake - Crotalus oreganus lutosus
map
Range

Blue: Crotalus oreganus helleri (=Crotalus helleri) -
 Southern Pacific Rattlesnake


Orange: Crotalus oreganus lutosus (=Crotalus lutosus) -
 Great Basin Rattlesnake


Red: Crotalus oreganus oreganus (=Crotalus oreganus) -
 Northern Pacific Rattlesnake




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