Chasm Lake Hike

Alpine Lake with Longs
Peak Towering Above

Featured Route
on Alpine Brook in Rocky Mountain National Park
  • Total Length
    8¼mi
  • Ascent
    2,589ft
  • Difficulty
    Most-Difficult

Sitting directly beneath the classic 14’er Longs Peak, Chasm Lake is one of Colorado’s most iconic alpine lakes.

Allow 2–4 hours to reach Chasm Meadow. From the meadow, follow a trail that heads west, and scramble up a break in the rocks to reach the lake. When snow lingers, ascend and descend carefully – do not slide. Until mid-July, a steep snowfield also covers the trail before the meadow. Use extreme caution when crossing. In early summer, blue columbine graces the rocky ledges near Columbine Falls, which spill over the cliffs below Chasm Meadows. From there, the stream flows into Peacock Pool, visible below the trail. 

Get Here
  • Hiking
  • Out & Back
  • Lakes
  • Alpine
Photos
Elevation Profile
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Timeline
Start Hiking (Ascent)
For 4.1mi
Continue Hiking (Descent)
For 4.1mi