Photo 4924959, (c) Joelle Belmonte, some rights reserved (CC BY-NC), uploaded by Joelle Belmonte

Attribution © Joelle Belmonte some rights reserved Uploaded by joelle Source iNaturalist Associated observations Photos / Sounds What Northern Pacific Rattlesnake (Crotalus oreganus ssp. oreganus) Observer joelle Date September 5, 2016 06:55 PM PDT Place Mount Diablo State Park, Contra Costa, California, United States (Google, OSM) Date Added September 18, 2016 01:35 AM PDT 5 IDs Research Grade View Sizes small medium large original Copyright