Photo 35619796, (c) Bob Hislop, some rights reserved (CC BY-NC), uploaded by Bob Hislop

Attribution © Bob Hislop some rights reserved Uploaded by rhislop Source NaturaLista Colombia Associated observations Photos / Sounds 3 photos What Northern Pacific Rattlesnake (Crotalus oreganus ssp. oreganus) Observer rhislop Date April 17, 2019 12:08 PM PDT Place Castle Rock Park, Alamo, CA 94598, USA (Google, OSM) Date Added April 23, 2019 07:48 PM PDT 6 IDs Research Grade View Sizes small medium large original