Probably Map Lichen (Rhizocarpon geographicum) growing on a rock, Oregon Cascades

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Size: 3540px × 2832px
Location: USFS Road 19, Oakridge, Oregon, USA
Photo credit: © Ken Barber / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: geographicum, lichen, map, rhizocarpon, rock, yellow