Photo 2958264, (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey

Attribution © James Bailey some rights reserved Uploaded by silversea_starsong Source iNaturalist Associated observations Photos / Sounds What Yellow Cobblestone Lichen (Acarospora socialis) Observer silversea_starsong Date February 1, 2016 01:53 PM PST Place Oak Creek, Agoura Hills, CA, US (Google, OSM) Date Added February 1, 2016 04:44 PM PST 2 IDs Research Grade View Sizes small medium large original