Guinn Mountain–Devil's Thumb Trail, 4 sights is a 15.7-mile out-and-back in Indian Peaks Wilderness near Eldora, CO. The route reaches Guinn Mountain. It climbs 3,500 ft, with sections as steep as 26% grade. It scores 93/100 on the Ambleway Wildness scale: genuinely wild.
Elevation
0 mi9,013 – 11,726 ft · steepest grade: 26%16.3 mi
Getting there
Trailhead: Devils Thumb Trail 39.95436, -105.60081
Nearest town Eldora, CO
Directions
AMBLEWAYwww.ambleway.com
Guinn Mountain–Devil's Thumb Trail, 4 sights
15.7 mi · ▲ 3,500 ft · 6 hr 59 min
Elevation 9,012–11,727 ft
Out & Back · Indian Peaks Wilderness
Trailhead: Devils Thumb Trail · 39.95436, -105.60081
Weather Sep 4: Rain, high 74°F / low 53° · precip 23% · wind 17 mph · sunrise 6:34 AM · sunset 7:31 PM
Dogs allowed on leash · Parking lot at the trailhead
- Start on Devils Thumb Trail, heading NW.
- 0.4 miTurn left onto Devil's Thumb Trail, heading NW.
- 0.4 miContinue straight onto Devils Thumb Trail, heading S.
- 0.4 miContinue straight onto King Lake, heading W.
- 3.8 miSharp left, heading W.
- 50 ftBear right onto King Lake Trail, heading W.
- 0.4 miSharp left onto High Lonesome Trail, heading S.
- 0.3 miBear right onto Rollins Pass Trailhead Road, heading SE.
- 150 ftContinue straight onto Rollins Pass Road, heading SE.
- 1.4 miBear left onto Boulder Wagon Road, heading E.
- 350 ftBear left, heading SE.
- 100 ftBear left, heading SE.
- 0.3 miPass Guinn Mountain.
- 0.3 miReach Guinn Mountain, then turn around and head back the way you came.
- 0.6 miBear left, heading W.
- 150 ftTurn left, heading W.
- 350 ftBear right onto Rollins Pass Road, heading W.
- 1.4 miContinue straight onto Rollins Pass Trailhead Road, heading SW.
- 100 ftBear left onto High Lonesome Trail, heading SW.
- 0.3 miSharp right onto King Lake Trail, heading W.
- 0.4 miBear left, heading N.
- 50 ftSharp right onto King Lake, heading NE.
- 3.8 miContinue straight onto Devils Thumb Trail, heading E.
- 0.4 miContinue straight onto Devil's Thumb Trail, heading E.
- 0.4 miTurn right, heading N.
- 0.3 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
61% other31% dirt1% boardwalk7% unspecified
Weather
RainTemperature 74°F53°
Precip23%Wind17 mphUV8Humidity36%
Rained 0.2″ 4 days ago
Hourly temperatureRain chance
75°50°
Sunrise 6:34 AM12 AM3 AM9 AM12 PM3 PMSunset 7:31 PM
Sat
72°52°
19%
Sun
76°55°
56%
Mon
70°51°
45%
Tue
72°49°
35%
Wed
73°50°
40%
Thu
73°51°
43%
Sunset
The best sunset spot on this hike is 5.5 mi in (~214 min). Leave by 3:37 PM for the 7:31 PM sunset. Back at your car by 10:00 PM, after dark — bring a headlamp.
Good to know
- Dogs allowed on leash
- Parking lot at the trailhead
More from Devils Thumb Trail Trailhead
- Lost Lake–Devil's Thumb Bypass Trail, 6 sights 4.8 mi · ▲ 894 ft
- Devil's Thumb Bypass Trail–Devil's Thumb Trail Loop, 6 sights 13.9 mi · ▲ 3,598 ft
Get outside more
A wild hike near Eldora, emailed to you once a week.
Hikes near Eldora, Colorado