• 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 a man measuring a glacier using a theodolite

You can virtually explore the anatomy of glaciers. Watch glaciers ebb and flow over the last 18,000 years. Tour the landscape as ice shapes and molds it. Launch the interactive web pages featuring the Glaciers and Glacier Change in RMNP. More...