Payette National Forest · Idaho

Twenty Mile

11 mi of trail, end to end · Duck/Hum Lake Trailhead: 1.5 mi one way in the Service's write-up · native material surface · trail No. 085 · trail class 4 · typical grade trail_grade · tread 18-24 inches wide · hiking, horse, bike, motorcycle, e-bike · motorized use allowed

Backcountry camps

Along the way Upper Payette Lake Camping Area

Trailhead Duck/Hum Lake Trailhead Drive there

Duck/Hum Lake Trailhead 1.5 mi one way · the Forest Service's write-up

The Duck Lake/Hum Lake Trailhead provides access to the Twenty Mile Trail #085 and Hum Lake Trail #082 from Lick Creek Road. The hike to Duck Lake is just under 1.5 miles one way and reasonable for a wide range of ability levels. It does entrail two small stream crossings. At Duck Lake, you'll find several dispersed camping sites.

The Hum Lake Trail #082 departs from the Twenty Mile Trail #085 on the way to Duck Lake, about one mile from the trailhead. Reaching Hum Lake requires a steep climb to approximately 7,800' and a descent of 1,000' down to the lake shore. This elevation gain (and loss) will be replicated on the return trip. Adventurous hikers will be rewarded with great views of both lakes typically only enjoyed by mountain goats and a handful of hardy hikers.

The Twenty Mile Trail #085 is open to two-wheel motorized use while the Hum Lake Trail #082 is designated non-motorized.

The trailhead includes a vault toilet, hitching rails, and stock unloading ramp.

Duck Lake Trail Recreation Opportunity Guide PDF

Hum Lake Trail Recreation Opportunity Guide PDF

This trailhead on fs.usda.gov

Every trail in Payette National Forest

All 357 trails in Payette 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.