Twin Sisters Peaks–Twin Sisters Mountain, 10 sights is a 14.4-mile out-and-back in Rocky Mountain National Park near Beaver Point, CO. The route passes Dorsey Lake, Lily Lake and Twin Sisters Mountain before reaching Twin Sisters Peaks at the turnaround, 7.2 miles in. It climbs 3,989 ft, with sections as steep as 22% grade, and is mostly dirt. It scores 28/100 on the Ambleway Wildness scale: green fringe.
Elevation
0 mi7,878 – 11,339 ft · steepest grade: 22%15.2 mi
Getting there
Trailhead: B4 40.34131, -105.56756
Nearest town Beaver Point, CO
Directions
AMBLEWAYwww.ambleway.com
Twin Sisters Peaks–Twin Sisters Mountain, 10 sights
14.4 mi · ▲ 3,989 ft · 6 hr 48 min
Elevation 7,877–11,339 ft
Out & Back · Rocky Mountain National Park
Trailhead: B4 · 40.34131, -105.56756
Weather Sep 5: Drizzle, high 79°F / low 60° · precip 4% · wind 8 mph · sunrise 6:34 AM · sunset 7:30 PM
No dogs on part of this route · Toilets at the trailhead · Parking lot at the trailhead
- Start at the trailhead, heading SE.
- 50 ftContinue straight onto Wind River South, heading SE.
- 50 ftPass Dorsey Lake.
- 0.1 miContinue straight onto Marsh Meadow Connector, heading SE.
- 50 ftContinue straight onto Wind River South, heading S.
- 200 ftBear left onto Spruce Trail, heading S.
- 200 ftContinue straight onto Tunnel Road Horse Trail, heading S.
- 100 ftContinue straight onto Spruce Trail, heading SE.
- 100 ftContinue straight onto Tunnel Road Horse Trail, heading S.
- 350 ftBear left onto East Portal Trail, heading S.
- 0.3 miTurn left onto Summit Loop Trail, heading SW.
- 0.3 miBear right, heading S.
- 0.5 miBear right, heading E.
- 0.9 miSharp right, heading E.
- 0.3 miBear right onto Aspen Brook Trail, heading S.
- 0.2 miSharp left, heading S.
- 0.4 miBear left, heading SE.
- 50 ftTurn right, heading SE.
- 350 ftContinue straight onto Lily Ridge Trail, heading SE.
- 50 ftPass Lily Lake.
- 350 ftTurn left onto Lily Lake Trail, heading S.
- 300 ftTurn right, heading S.
- 0.3 miTurn left, heading E.
- 50 ftTurn right, heading E.
- 50 ftBear right onto Wind River Pass Trail, heading E.
- 0.3 miSharp left onto Serenity Lane, heading SW.
- 3.3 miPass Twin Sisters Mountain.
- 250 ftReach Twin Sisters Peaks, then turn around and head back the way you came.
- 3.3 miSharp right onto Wind River Pass Trail, heading NE.
- 0.3 miBear left, heading W.
- 50 ftTurn left, heading SW.
- 50 ftTurn right onto Lily Lake Trail, heading SW.
- 0.3 miBear right, heading NE.
- 350 ftTurn right onto Lily Ridge Trail, heading NE.
- 0.1 miTurn left, heading NW.
- 50 ftBear right, heading NW.
- 0.4 miSharp right, heading W.
- 350 ftContinue straight onto Aspen Brook Trail, heading NW.
- 0.1 miBear left, heading N.
- 0.3 miSharp left, heading SW.
- 0.9 miBear left onto Summit Loop Trail, heading NW.
- 0.5 miSharp right, heading NW.
- 0.3 miTurn right onto East Portal Trail, heading W.
- 0.3 miBear right onto Tunnel Road Horse Trail, heading NW.
- 350 ftContinue straight onto Spruce Trail, heading N.
- 100 ftContinue straight onto Tunnel Road Horse Trail, heading N.
- 100 ftContinue straight onto Spruce Trail, heading N.
- 200 ftBear right onto Wind River South, heading N.
- 200 ftContinue straight onto Marsh Meadow Connector, heading N.
- 50 ftContinue straight onto Wind River South, heading N.
- 250 ftArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
94% dirt6% gravel
Weather
DrizzleTemperature 79°F60°
Precip4%Wind8 mphUV7Humidity30%
Hourly temperature
80°60°
Sunrise 6:34 AM12 AM3 AM9 AM12 PM3 PMSunset 7:30 PM
Sun
78°52°
26%
Mon
76°57°
16%
Tue
79°52°
19%
Wed
81°55°
34%
Thu
75°57°
32%
Fri
80°52°
26%
Sunset
The best sunset spot on this hike is 7.0 mi in (~266 min). Leave by 2:44 PM for the 7:30 PM sunset. Back at your car by 10:39 PM, after dark — bring a headlamp.
Good to know
- No dogs on part of this route
- Toilets at the trailhead
- Parking lot at the trailhead
More from B4 Trailhead
- Crag of Fear–Slamdance Buttress, 8 sights 10.3 mi · ▲ 3,263 ft
- The Pool–Dorsey Lake, 8 sights 12.8 mi · ▲ 3,205 ft
- Gianttrack Mountain–Lily Lake, 8 sights 13.6 mi · ▲ 4,732 ft
- Emerald Lake–Dream Lake, 12 sights 14.3 mi · ▲ 3,134 ft
- Dorsey Lake–Storm Pass, 10 sights 16 mi · ▲ 4,009 ft
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