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Photo of the Day (POTD): March 6, 2019

Kane Gulch, San Juan County.
Photo by Andy Cvar.

Corrugated, conchoidal fracture pattern in blocks of Cedar Mesa Sandstone. The sandstone was deposited during the Early Permian in a trade-wind-blown sand sea.

Corrugated, conchoidal fracture pattern in blocks of Cedar Mesa Sandstone. The sandstone was deposited during the Early Permian in a trade-wind-blown sand sea.

POTD December 4, 2017: Cedar Mesa, San Juan County

Cedar Mesa, San Juan County
Photographer: Tyler Knudsen © 2017
An overhanging ledge of Permian-age Cedar Mesa Sandstone protects ancestral Puebloan ruins in Road Canyon. The informally named “Fallen Roof” ruin owes its name to the prominent spalling and collapse of thin sandstone slabs from the overhang’s ceiling.