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13th Annual Smithsonian Magazine Photo Contest Natural World
Sentinel Rock, Lyons formation, in Perry Park, Colorado

This is a picture of "Sentinel Rock", a majestic part of the Lyons formation, 65 million years old. It is located in the beautiful area of Colorado called, Perry Park.

Photo Detail
Date Taken: 09.2014
Date Uploaded: 11.2015
Photo Location: Larkspur, Colorado, United States of America
Camera: DSLR-A350
Copyright: © Pati Palumbo