Photo 23420629, (c) Grant Van Horn, some rights reserved (CC BY-NC), uploaded by Grant Van Horn

Attribution © Grant Van Horn some rights reserved Uploaded by gvanhorn Source iNaturalist Associated observations Photos / Sounds 3 photos What Southern Pacific Rattlesnake (Crotalus oreganus ssp. helleri) Observer gvanhorn Date August 18, 2018 06:30 PM PDT Place Angeles National Forest, Altadena, CA, US (Google, OSM) Date Added August 19, 2018 10:55 AM PDT 1 comment 5 IDs Research Grade View Sizes small medium large original