POTD January 20, 2015: Arches National Park, Grand County, Utah
Arches National Park, Grand County, Utah
Photographer: Gregg Beukelman; © 2014
Turret Arch viewed through North Window arch in The Windows Section of Arches National Park. The arches formed as the result of erosion through weak parts of sandstone fins composed of Jurassic-age Dewey Bridge Member of the Carmel Formation and Slick Rock Member of the Entrada Sandstone.