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Making America's Best Idea Even Better
Rocky Mountain National ParkA photo of climbers preparing for the first technical climb of the east face of Longs Peak.
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Rocky Mountain National Park
Aspens Fading
a photo of aspen fading in the fall
Photo courtesy of Rocky Mountain National Park.


  
Aspen leaves are fading from green to gold now in Rocky Mountain National Park.
a photo of the mountains at treeline  

Did You Know?
Temperature causes tree line. Trees need an average growing temperature of about 50 degrees.

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Last Updated: July 18, 2007 at 12:21 EST