5.3 mi from the trailheadRocky Mountain National Park Aspenglen Campground
Campground · Colorado
Hike
Upper Lost Lake Trail
- Passes Lost Falls
- Inside Rocky Mountain National Park
- 5,441 ft of climbing
19.7 mi out & back · 5,441 ft gain · 10,693 ft high point · Very hard
Via the Lower Cow Creek Trail, North Boundary, Upper, and the Lower Lost Lake Trail (8.1 mi)
In Rocky Mountain National Park · Colorado · National Park Service
About this hike
Upper Lost Lake Trail is a 19.7 mi out and back in Rocky Mountain National Park via Lower Cow Creek Trail, North Boundary, Upper, and Lower Lost Lake Trail, passing Lost Falls with 5,441 ft of climbing.
Elevation
5,441 ft of gain round trip.
Camp near here
The closest places to sleep, measured from the trailhead.
- 5.3 mi from the trailhead
More hikes nearby
Ranked the same way, within twenty-five miles.
