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Arapaho Pass Trail

Intermediate/Difficult

Trail

13.1 mile 21.1 kilometer point to point
83% Runnable
Intermediate/Difficult

Elevation

Ascent: 1,836' 560 m
Descent: -3,599' -1,097 m
High: 11,932' 3,637 m
Low: 8,369' 2,551 m

Grade

Avg Grade: 8% (4°)
Max Grade: 23% (13°)

Dogs

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Trail shared by Tom Robson

Climb through woods and open meadows on this pass-gaining slog of a route.

Tom Robson

Features Birding · Fall Colors · Lake · River/Creek · Views · Wildlife

Runner Notes

A long, but doable trail running experience - all at high elevation.

Description

From the Fourth of July TH, the Arapaho Pass Trail climbs the wooded, northern slope of the North Fork, Middle Boulder Creek drainage into the Indian Peaks Wilderness. It eventually intersects with the Diamond Lake Trail #975 before continuing onto the Fourth of July Mine (elevation 11,245 feet).

In June and early July, significant snowfields and high water crossings exist along portions of this trail. At the mine, the Arapaho Glacier Trail #905 intersects. From here, the Arapaho Pass Trail continues west 1.2 miles to Arapaho Pass (elevation 11,906 feet).

For a side trip, continue west along the ridge for about 0.25 miles to visit Lake Dorothy (elevation 12,061 feet). The Caribou Pass Trail continues on an impressive old road, blasted into a cliff to Caribou Pass. Some parts of this trail are narrow and not for the faint of heart.

The Arapaho Pass Trail continues north (right) and drops 750 feet down a series of switchbacks to Caribou Lake. From here, a nine-mile run on this trail leads to Monarch Lake. This section of descends more steadily through heavily wooded terrain eventually terminating at the Continental Divide Scenic Trail.

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Check-Ins

Aug 24, 2019
Anna L
Good rte for long training effort at high altitude. Quality climbs up/down Arapaho pass. Rocks and roots make it more challenging to run 14mi — 5h 00m
Aug 21, 2019
Michael Reschly
12mi

Trail Ratings

  4.5 from 11 votes

#364

Overall
  4.5 from 11 votes
5 Star
64%
4 Star
27%
3 Star
9%
2 Star
0%
1 Star
0%
Trail Rankings

#67

in Colorado

#364

Overall
43 Views Last Month
11,512 Since Apr 7, 2015
Intermediate/Difficult

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Photos

Indian Paintbrush and buttercup.
Oct 23, 2016 near Nederland, CO
Columbine on the trail up. This is what heaven looks like. It has to.
Oct 23, 2016 near Nederland, CO
Summer flowers were crazy epic.
Jul 10, 2016 near Nederland, CO
This panorama looks down to the valley/trailhead, and up toward Arapahoe Pass.
Jul 4, 2017 near Nederland, CO
Looking down the valley.
Oct 23, 2016 near Nederland, CO
Waterfall along Arapaho Pass Trail
Jul 16, 2019 near Fraser, CO

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