POTD June 20, 2017: Fremont petroglyphs.

Fremont petroglyphs
Photographer: Charles Bishop © 2017
At the mouth of Cottonwood Canyon, Fremont petroglyphs in the Northern San Rafael Style depict a hunting scene. The figures are etched into sandstone of the Green River Formation, and derive their contrast from the dark, weathered patina developed on the light-colored rock.