Photo 26085903, (c) Dan Fitzgerald (Fitz), some rights reserved (CC BY-NC), uploaded by Dan Fitzgerald (Fitz)

Attribution © Dan Fitzgerald (Fitz) some rights reserved Uploaded by hasfitz5 Source iNaturalist Associated observations Photos / Sounds 2 photos What Northern Pacific Rattlesnake (Crotalus oreganus ssp. oreganus) Observer hasfitz5 Date October 4, 2018 10:26 AM PDT Place Burma Road, Mount Diablo State Park, Contra Costa County, CA, USA (Google, OSM) Date Added October 4, 2018 09:32 PM PDT 6 IDs Research Grade View Sizes small medium large original