Photo 35010049, (c) Tony Iwane, some rights reserved (CC BY-NC), uploaded by Tony Iwane

Attribution © Tony Iwane some rights reserved Uploaded by tiwane Source iNaturalist Associated observations Photos / Sounds 2 photos What Northern Pacific Rattlesnake (Crotalus oreganus ssp. oreganus) Observer tiwane Date April 14, 2019 01:27 PM PDT Place Mount Diablo State Park, Contra Costa, California, United States (Google, OSM) Date Added April 16, 2019 10:46 PM PDT 5 IDs Research Grade View Sizes small medium large original Copyright Tony Iwane