Three Prong Trail #539


All of Three Prong Trail is on top of a ridge. Since the ridge top is so open, the views into the forest below and the peaks on the Idaho-Montana divide and over the eastern portion of the Red River District are exceptional. The trailhead for Three Prong Trail #539 is at the junction with Burnt Knob Spur Road #468-C, about 0.25 mile north of Burnt Knob lookout. From the trailhead, the trail drops into a shallow saddle where a nonsystem trail meanders eastward to the three Burnt Knob Lakes. Continuing north, the trail rises to 7900 feet, levels for a mile, and drops into a saddle and the junction with Hot Springs Creek Trail #581 at mile 4. MacArthur Lake can be seen along this flat part of the ridge. The trail climbs along the same ridge to finally reach a point at over 8000 feet south of Three Prong Mountain. Three Prong Trail gets very faint here as it drops off the ridge and into the Bitterroot National Forest where it is called Trail #3.

At a Glance

Fees No Fee.
Usage: Light
Closest Towns: Elk City, Idaho
Water: No
Restroom: No
Information Center: Red River Ranger District, 208-842-2245

General Information

Directions: From State Highway 14, turn south onto Red River-Dixie Road #222. Follow Road #222 past Red River Ranger Station (now closed) to its junction with Nezperce Trail Road #468. Turn east onto Road #468 and follow it 31.5 miles to Burnt Knob Spur Road #468-C. This is an unmaintained, rocky road and caution should be used when driving it. Follow Road #468-C for 1.5 miles to the Three Prong trailhead.



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Day Hiking

Hike a ridge.

Nature Viewing

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Areas & Activities


  Area/Length : 
5.0 miles

  Elevation : 
7300 feet - 8100 feet