Thamnophis sirtalis infernalis
Marin Co., California. May 2, 2014
Found on the edge of a freshwater lagoon, just a hundred yards or so from the ocean. The most beautiful of the garter snakes? This species certainly gives the San Francisco Garter Snake a run for its money.
This species is featured in my Notes From The Field blog post ‘Thamnopalooza‘.
My Flickr album for this species is here.