• Photo of park visitors enjoying sunset from the Alpine Ridge Trail in Rocky Mountain National Park.

    Rocky Mountain

    National Park Colorado

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  • Impacts from September 2013 Flood - Old Fall River Road, Alluvial Fan and Trails

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Ptarmigan Camouflage

a photo of a ptarmigan in summer
A ptarmigan is camouflaged against a summer tundra landscape.
Photo courtesy of Rocky Mountain National Park.
 
a photo of a ptarmigan in winter
A winter ptarmigan is white as the tundra snow it inhabits.
Photo courtesy of Rocky Mountain National Park.

Did You Know?

A photo of arrowheads that archeologists found in the park.

The area now known as Rocky Mountain National Park has been occupied by human beings for 10,000 years. Archeologists have found more than 300 prehistoric sites at elevations ranging from 8,000 to 13,000 feet above sea level. More...