• Photo of mist drifting over Moraine Park meadow on a spring morning. NPS Photo by C. Brindle

    Rocky Mountain

    National Park Colorado

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Valley Fogs

a photo of valley fog
Clouds collect along the rock spires on Mt. Chapin. Valley fogs such as this are a result of cool air draining down slope.
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...