Near Hallett Peak Approach
Hiker on Rocky Mountain National Park Flattop Mountain trail
Near Hallett Peak Approach
View near top of Flattop Mountain in late April.
Near Hallett Peak Approach
Flattop "summit"
Near Hallett Peak Approach
Looking down a glacially carved canyon.
Near Hallett Peak Approach
Elk on top of Flattop Mountain on way to Hallett Peak

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Driving Directions
Hike Trail

Hallett Peak Approach

4.8 (14 Ratings)
Take this unmaintained route and scramble to Hallett Peak's summit for amazing 360-degree views.
0.6
mi
Distance
363
ft
Gain
strenuous
Difficulty
ViewsWildlife

Route Details

Flatter
Steeper
0.62mi
Distance
363ft
Elevation Gain
13ft
Elevation Loss
20%
Max Grade
12,669ft
High Point
12,293ft
Low Point
Path Type
Point to Point
Description
The climb from Flattop to Hallett Peak offers spectacular views and a rare chance to explore the open tundra with "relative" ease. From the summit area of Flattop, head south skirting above the huge cirque that holds Tyndall Glacier. Give this formation room and the respect it deserves. Look for a faint trail marked by cairns, although it is often hard to pick out the cairns from the steep talus landscape. If you've lost the trail, just continue south, eventually bending southeast towards the summit. Take heart, it is easier to find the established path when looking down on it from the summit. At the summit, you'll be greeted by several wind shelters. A topo map will help identify neighboring Otis Peak (12,486'), Taylor Peak (13,153'), Longs Peak (14,259'), Notchtop Mountain (12,129'), Ptarmigan Point (12,363'), and portions of the Mummy Range, Never Summer Range and Grand Lake area. Turn northeast for good views of Tyndall Glacier and gorge, and southeast for Chaos Canyon and Lake Haiyaha.

Route Conditions

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All Clear
Anonymous Adventurer
All Clear
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Contributors
Trail Master