Manti-La Sal National Forest · Utah

Highway 31 Trail

4.9 mi of trail, end to end · about 40 ft of climbing · 750 ft of descent · 9,051 ft–9,788 ft · native material surface · trail No. 5974 · trail class 4 · typical grade 10-12% · hiking, bike, motorcycle, atv, 4wd, e-bike · motorized use allowed

Lakes

9,782 ft 9,070 ft · 4.7 mi high 9,786 ft

Along the way Huntington Reservoir/Mammoth Fishing Site

Trailhead Huntington Loop 9,784 ft Drive there

Huntington Loop the Forest Service's write-up

season May to

This loop is 35 miles long and begins at the Highway 31 Trail Staging Area at the junction of UT-31 and South Skyline Drive #50150 (Arapeen Route #1). From the Staging Area travel south on South Skyline Drive for approximately 12 miles to Potters Canyon Road #50271 (Arapeen Route #51). Turn left (east) and travel for approximately 6.2 miles to Miller Flat Road #50014 (Arapeen Route #54). Turn left (north) and travel the Miller Flat Road for approximately 10.6 miles to Forest Road #53173 (Arapeen Route #13). Turn left (west) and travel to Huntington Reservoir. Continue west on the Highway 31 Trail #5974 (Arapeen Route #12) for approximately 5.7 miles back to the Staging Area to complete your trip.

Restrictions Open to:  Foot, Bike, Horse, OHV, and Full size vehicles. Arapeen Route #12 and #13 are open to non-motorized uses and OHV's 60 inches or less in width. 

This hike on fs.usda.gov

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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.