• 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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Lenticular Clouds

a photo of  lenticular clouds
Lenticular clouds result from stable, moist air masses and strong winds in mountain environments.
Photo copyright University Corporation for Atmospheric Research, photo by Carlye Calvin.

Did You Know?

a photo of a fisherman in a lake

Volunteers called the Greenback Backers assist the US Fish and Wildlife Service on greenback and Colorado River cutthroat recovery. More...