Photo 1971190, (c) David Greenberger, some rights reserved (CC BY-NC-ND), uploaded by David Greenberger

Attribution © David Greenberger some rights reserved Uploaded by dgreenberger Source iNaturalist Associated observations Photos / Sounds What Gopher Snake (Pituophis catenifer) Observer dgreenberger Date June 6, 2015 12:28 PM PDT Place mt. diablo (Google, OSM) Date Added June 7, 2015 09:46 AM PDT 4 IDs Research Grade View Sizes small medium large original Copyright