Arches National Park, Grand County
Photographer: Gregg Beukelman © 2017

Defying gravity, an estimated 3500-ton sandstone boulder of Jurassic-age Entrada Formation perches atop a pedestal of less resistant sandstone of the Dewey Bridge Member of the Carmel Formation and forms Balanced Rock at Arches National Park. Snow-capped peaks in the background are the La Sal Mountains, a Tertiary-age laccolith.