Photo 38920140, (c) Marion Anthonisen, some rights reserved (CC BY-NC), uploaded by Marion Anthonisen

Attribution © Marion Anthonisen some rights reserved Uploaded by marionanoiram Source iNaturalist Associated observations Photos / Sounds What Northern Pacific Rattlesnake (Crotalus oreganus ssp. oreganus) Observer marionanoiram Date May 13, 2019 06:12 PM PDT Place Contra Costa County, CA, USA (Google, OSM) Date Added May 14, 2019 08:21 PM PDT 5 IDs Research Grade View Sizes small medium large original