RMNP - Chasm Lake TH
Located just below Long’s Peak in Rocky Mountain National Park and inside a deep cirque, Chasm Lake is one of Colorado’s most iconic alpine lakes.
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This trail begins at Longs Peak Trailhead, and climbs steadily through a subalpine forest up to the alpine tundra. The trail eventually turns to rock and requires scrambling up the cirque to where the lake is located.
Here is the link to the closure areas, updated year-round: Area Closures to Protect Plants & Animals - Rocky Mountain National Park (U.S. National Park Service) (nps.gov)
Directions to trailhead: East Longs Peak Trail – Longs Peak Trail – Keyhole Route – Shelf Trail - Google Maps
- Suitable Activities: Hiking
- Seasons: Year-round
- Weather: View weather forecast
- Difficulty: Moderate
- Length: 6.5 mi
- Elevation Gain: 2,589 ft
- 11,760 ft
- Land Manager: National Park Service
- Parking Permit Required: National Park Entrance Fees
- Recommended Party Size: 12
- Maximum Party Size: 12
- Maximum Route/Place Capacity: 12
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