Photo 5667470, (c) Pat Deacon, some rights reserved (CC BY-NC), uploaded by Pat Deacon

Attribution © Pat Deacon some rights reserved Uploaded by pwdeacon Source iNaturalist Associated observations Photos / Sounds What Prairie Rattlesnake (Crotalus viridis) Observer pwdeacon Date July 30, 2010 11:44 AM EDT Place Grasslands National Park of Canada, Val Marie, SK, Canada (Google, OSM) Date Added December 1, 2016 11:48 PM EST 7 IDs Research Grade View Sizes small medium large original