Rocky Mountain National Park

Otis Peak–Flattop Mountain, 7 glaciers

11.9 mi · ▲ 4,324 ft · 6 hr 8 min

Otis Peak–Flattop Mountain, 7 glaciers is an 11.9-mile out-and-back in Rocky Mountain National Park near Beaver Point, CO. The route passes Bear Lake, Flattop Mountain, Tyndall Glacier and Andrews Glacier before reaching Otis Peak at the turnaround, 5.9 miles in. It climbs 4,324 ft, with sections as steep as 33% grade, and is mostly dirt. It scores 55/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi9,433 – 12,694 ft · steepest grade: 33%12.2 mi

Getting there

Trailhead: Bear Lake Road 40.31183, -105.64262
Nearest town Beaver Point, CO

Directions

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Otis Peak–Flattop Mountain, 7 glaciers

11.9 mi · ▲ 4,324 ft · 6 hr 8 min

Elevation 9,433–12,695 ft

Out & Back · Rocky Mountain National Park

Trailhead: Bear Lake Road · 40.31183, -105.64262

Weather Sep 4: sunrise 6:34 AM · sunset 7:31 PM

No dogs on part of this route · Transit-accessible: Glacier Gorge stop 257 m from the trailhead · Toilets at the trailhead · Parking lot at the trailhead

  1. Start on Bear Lake Stock Trail, heading N.
  2. 0.2 miPass Bear Lake.
  3. 150 ftContinue straight onto Bear Lake Trail, heading N.
  4. 150 ftBear left onto Bear Lake-Bierstadt Trail, heading N.
  5. 0.3 miSharp left onto Flattop Mountain Trail, heading NE.
  6. 3.7 miPass Flattop Mountain.
  7. 100 ftBear left, heading SW.
  8. 0.2 miPass Tyndall Glacier.
  9. 0.4 miBear right, heading E.
  10. 50 ftSharp right, heading E.
  11. 0.9 miPass Andrews Glacier.
  12. 0.1 miReach Otis Peak, then turn around and head back the way you came.
  13. 1.1 miSharp left, heading N.
  14. 50 ftBear left, heading N.
  15. 4.3 miSharp right onto Bear Lake-Bierstadt Trail, heading NE.
  16. 0.3 miBear right onto Bear Lake Trail, heading SW.
  17. 150 ftContinue straight onto Bear Lake Stock Trail, heading SW.
  18. 0.2 miArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail surface

100% dirt

Weather

Sunrise 6:34 AMSunset 7:31 PM

Sunset

The best sunset spot on this hike is 4.3 mi in (~191 min). Leave by 4:00 PM for the 7:31 PM sunset. Back at your car by 9:30 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • No dogs on part of this route
  • Transit-accessible: Glacier Gorge stop 257 m from the trailhead
  • Toilets at the trailhead
  • Parking lot at the trailhead

More from Bear Lake Road Trailhead