Photo 10742429, (c) C. Mallory, some rights reserved (CC BY-NC), uploaded by C. Mallory

Attribution © C. Mallory some rights reserved Uploaded by psyllidhipster Source iNaturalist Associated observations Photos / Sounds 4 photos What Northern Black-tailed Rattlesnake (Crotalus molossus ssp. molossus) Observer psyllidhipster Date August 25, 2017 07:39 PM PDT Place Pima County, AZ, USA (Google, OSM) Date Added September 25, 2017 07:54 PM PDT 5 IDs Research Grade View Sizes small medium large original