Anderson Trail No. 579






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Anderson Trail Map <click here>

Length:  total trail to Four Mile Lake: 7.5-miles (one-way).  Recommended hike: 10.0 miles (turn around at saddle at mile 5,  return to trailhead).

Elevation Stats:  total trail: altitude gain 1,750 ft (9050 ft to 10,800 ft with 2,186 ft ascent  and 436 ft descent) . Recommended hike:  2,186 ft altitude gain.

Trailhead Facilities: Toilet

Short Trail Summary: This hike description is to the junction with Fourmile Trail No. 569. A loop can be made with the Fourmile Trail.

From the Trailhead, Anderson Trail climbs up out of the Fourmile Creek drainage and travels near the base of the impressive east southeast face of Pagosa Peak before turning north. Here, the trail is above treeline and exposed with rocky under footing. The trail switchbacks steeply up the east shoulder of the mountain before dropping down into the upper Falls Creek drainage and continuing to Fourmile Lake and further to the junction with Fourmile Trail.

Directions: From US 160, turn north onto Lewis Street and take an immediate left onto 5th Street. Stay right on Fourmile Road (CR 400 which will turn to FS 645). Drive north 7-miles before turning right at the junction. Continue 4-miles to a shared Trailhead with the Fourmile Falls Trail No. 569. Anderson Trail No. 579 begins on the left 10ft before the sign for Fourmile Falls trail.

Driving Directions detail map<click here>


5 thoughts on “Anderson Trail No. 579

  1. Anderson Trail has been cleared of downed trees by San Juan Back Country Horsemen from the Four Mile Trailhead to mile point 4.0 where the trail crosses Pagosa Creek, which is at the bottom of the switchbacks. As of Sunday, May 20th, 2018 there were 2′ to 3′ deep snow drifts across the trail at the 4 mile point, but most of the trail is generally clear. There are numerous trees down across the switchbacks. SJBCH intends to do more clearing work on Memorial Day weekend.


  2. San Juan Back Country Horsemen members Rocky and Kelli Day and others have cut downed trees, cleared brush, and repaired tread to Fall Creek at approximately mile point 6. Few more downed trees remain on down grade to Four Mile Lake.


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