Photo 3002734, (c) ostevens, some rights reserved (CC BY-NC)

Attribution © ostevens some rights reserved Uploaded by ostevens Source iNaturalist Associated observations Photos / Sounds 3 photos What North American Porcupine (Erethizon dorsatum) Observer ostevens Date January 6, 2016 01:38 PM PST Place Alta Ski Area, Alta, UT, US (Google, OSM) Date Added February 11, 2016 06:39 PM HST 3 IDs Research Grade View Sizes small medium large original