Photo 17950381, (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller

Attribution © Alan Rockefeller some rights reserved Uploaded by alan_rockefeller Source iNaturalist Associated observations Photos / Sounds 2 photos What Mexican Dusky Rattlesnake (Crotalus armstrongi) Observer alan_rockefeller Date August 21, 2017 02:45 PM PDT Place Hidalgo, Mich., Mexico (Google, OSM) Date Added May 14, 2018 01:48 AM PDT 4 comments 14 IDs Research Grade View Sizes small medium large original