Rattlesnakes are widespread in California and are found in a variety of habitat throughout the state from coastal to desert. They may also turn up around homes and yards in brushy areas and under wood piles. Generally not aggressive, rattlesnakes will likely retreat if given room or not deliberately provoked or threatened. Most bites occur when a rattlesnake is handled or accidentally touched by someone walking or climbing.
Source: California Department of Fish and Wildlife
Pictured: Northern Pacific Rattlesnake