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Mountaineering · Bear Lake

Hallett Peak via Flattop

Distance
10.4 mi
Vertical
3,238 ft
Summit
12,713 ft
Difficulty
Very strenuous

Hallett Peak is a 12,720-foot summit on the Continental Divide in Rocky Mountain National Park, set 10.1 miles southwest of the town of Estes Park on the border between Grand and Larimer counties. The peak takes its name from William L. Hallett, a Boulder mining engineer and one…

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Hallett Peak's east face mirrored in Nymph Lake on a still morning, the cleavered summit and the south wall above Tyndall Glacier on full display.
Mike Lewinski · CC BY 2.0
Late-spring reflection of Hallett in Dream Lake with snow still banded across the cirque between Hallett and Flattop and ice rim on the lake.
National Park Service · Public domain
Otis Peak at left and the cleavered Hallett summit at right in winter, the long Continental Divide ridge between them holding the route from Flattop.
Lyssa Schaufeli · CC BY-SA 2.5
The three connected summits the route traverses — Otis, Hallett, and Flattop — seen across Bierstadt Lake from the northeast in early autumn.
Mike Lewinski · CC BY 2.0

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