• Photo of golden aspen with Hallet Peak in the background. NPS Photo by J. Frank

    Rocky Mountain

    National Park Colorado

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Aspens Fading

a photo of aspen fading in the fall
Aspen leaves are fading from green to gold now in Rocky Mountain National Park.
Photo courtesy of Rocky Mountain National Park.


  

Did You Know?

a photo of gneiss (a metamorphic rock)

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.