Arches National Park - Balanced Rock

SIA2909: Arches National Park - Balanced Rock

Photographer:	Rosanna Hamilton
Copyright:	Copyright © 2008 Rosanna Hamilton
Date:	2007/07/19
Location:	Arches National Park, Utah

Related Documents

Arches National Park

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SIA2909.jpg	480 x 761	69K
SIA2909.jpg	900 x 1427	200K
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Caption

The forces of erosion are sculpting more than just arches in the Entrada Sandstone. At Balanced Rock, the caprock of the hard Slick Rock Member is perched upon a base of the Dewey Bridge Member, a mudstone. This softer pedestal weathers more quickly than the resistant Slick Rock above. Eventually, the faster-eroding Dewey Bridge will cause the collapse of Balanced Rock.