• Photo of mist drifting over Moraine Park meadow on a spring morning. NPS Photo by C. Brindle

    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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Celebrate Rocky, the 100th Anniversary Newsletter

Celebrate Rocky!, Rocky Mountain National Park's 100th Anniversary Newsletter provides information and updates on 100th Anniversary planning.

Celebrate Rocky!, May 2013 Volume 1, Issue 1

Celebrate Rocky!, September 2013 Volume 1, Issue 2

Celebrate Rocky!, March 2014 Volume 2, Issue 1

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.