ID based on poring over field guides, pulling my hair out, until I finally just gave up and winged it.
At least three living near large redwood near park museum.
Found near creek by redwoods .
Only chipmunk species found in the Santa Cruz Mountains . Found at edge of redwood forest .
This is among the largest individual trees in the San Francisco Bay area .
Not a great picture, but wanted to post this for posterity. When I tried to get closer it slithered away into the ether. Seemed like a nice-sized individual.
Finally found one!
Having lunch with dipteran friend.