• Photo of park visitors enjoying sunset from the Alpine Ridge Trail in Rocky Mountain National Park.

    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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Butterfly Species List

The parks diversity of elevations and habitat types helps account for the 141 confirmed species of butterflies found here. See the complete park butterfly species list.

Mead's Sulphur butterfly on an alpine wildflower.
The alpine tundra, krummholz, and subalpine openings in the park are the normal habitat of Mead's Sulphur (Colias meadii).
NPS Photo by Stacy Sink

Did You Know?

Ptarmigan in summer camouflage

The ptarmigan is camouflaged perfectly in summer, with "mottled rock" color, and in winter, when it takes on the color of snow.