Medicine Bow-Routt National Forest · Colorado, Wyoming

Main Fork

19 mi of trail, end to end · about 1,900 ft of climbing · 8,413 ft–9,823 ft · native material surface · trail No. 1152.1 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, horse, bike, motorcycle, atv, e-bike · motorized use allowed

8,609 ft 9,819 ft · 10 mi high 9,819 ft

Trailheads Encampment Tie Hack Trailhead 8,430 ft Drive there · Encampment Trailhead 8,430 ft Drive there

Encampment Trailhead the Forest Service's write-up

Free

Designated trailhead with access to trails into Mount Zirkel Wilderness. Facilities include outhouse and horse corral. Setting is managed forest area. Timberline is at approximately 10,500 feet elevation.

Restrictions Review <a href="https://www.fs.usda.gov/detail/mbr/specialplaces/?cid=stelprdb5133586">wilderness regulations</a> before recreating in&nbsp;the Mount Zirkel Wilderness.

This trailhead on fs.usda.gov

Hike this trailAll 375 trails in Medicine Bow-Routt National ForestFind a trailForest on fs.usda.gov

About this trail's facts

The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.