Giant Gartersnake
Thamnophis gigas
- T. gigas – Yolo Co, CA – photo by Gary Nafis – Specimen Courtesy of USGS
- Map by Steve Bledsoe, SWCHR
DISTRIBUTION: In our region, Thamnophis gigas occurs in California from Glenn County, to the southern edge of the San Francisco Bay Delta, and from Merced County to northern Fresno County.
LEGAL STATUS: Thamnophis gigas is protected in California and listed as a Threatened Species under the U.S. Endangered Species Act (ESA) and the California Endangered Species Act (CESA).