Photo 10557560, (c) Casey H. Richart, some rights reserved (CC BY), uploaded by Casey H. Richart

Attribution © Casey H. Richart some rights reserved Uploaded by pileated Source iNaturalist Associated observations Photos / Sounds What Southern Pacific Rattlesnake (Crotalus oreganus ssp. helleri) Observer pileated Date August 19, 2017 09:42 AM PDT Place San Luis Rey River Trail, Oceanside, CA 92058, USA (Google, OSM) Date Added September 18, 2017 01:44 PM PDT 4 IDs Research Grade View Sizes small medium large original