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Making America's Best Idea Even Better
Rocky Mountain National Parka photo of Halletts in the snow
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Rocky Mountain National Park
Valley Fogs
a photo of valley fog
Photo courtesy of Rocky Mountain National Park.
Clouds collect along the rock spires on Mt. Chapin. Valley fogs such as this are a result of cool air draining down slope.
a photo of a Rocky Mountain Parnassian butterfly  

Did You Know?
This Rocky Mountain Parnassian butterfly is a strong flier, even on the windy alpine tundra at 12,000 feet.
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Last Updated: July 21, 2007 at 10:52 EST