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

    Rocky Mountain

    National Park Colorado

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  • Impacts from September 2013 Flood - Old Fall River Road, Alluvial Fan and Trails

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Wood Frog Research

a photo of a wood frog
USGS researchers are monitoring wood frog (Rana sylvatica) populations 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.