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Making America's Best Idea Even Better
Rocky Mountain National Parkphoto of hiker with Long's Peak
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Rocky Mountain National Park
Aspen
a photo of aspen
Photo courtesy of
E. Bernard.
Aspen grow well in sunny openings but would not survive in the shade of the large pines in the foreground.
a photo of gneiss (a metamorphic rock)  

Did You Know?
The oldest rocks in the park are metamorphic (biotite schist and gneiss) estimated at 1.7 billion years old, making them some of the oldest rocks within the National Park System.

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Last Updated: February 01, 2007 at 15:15 EST