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POTD August 22, 2013: Bluffs above Wahweap Bay on Lake Powell, Kane County, Utah

Bluffs of Entrada Sandstone above Wahweap Bay on Lake Powell, Kane County, Utah
Photographer: Lance Weaver

One of the most photographed geologic formations in Utah if not the world, the Entrada Sandstone is the featured rock unit of Arches National Park, Goblin Valley State Park, Kodachrome Basin State Park, and parts of Glen Canyon National Recreation Area. Variations in the Entrada’s appearance across the state are due to differences in internal structure and composition as well as external stresses.

POTD August 21, 2013: Kodachrome Basin State Park, Kane County, Utah

Kodachrome Basin State Park, Kane County, Utah
Photographer: Carole McCalla

Sand pipe of Carmel Formation sediment intruded into the overlying Entrada Sandstone. One of the most photographed geologic formations in Utah if not the world, the Entrada Sandstone is the featured rock unit of Arches National Park, Goblin Valley State Park, Kodachrome Basin State Park, and parts of Glen Canyon National Recreation Area. Variations in the Entrada’s appearance across the state are due to differences in internal structure and composition as well as external stresses.