11.4 mi from the trailheadPettit Lake Campground
Campground

8.1 mi out & back, trail only · 2,039 ft gain · 10,189 ft high point · Very hard
Reached by a 16.4 mi approach each way
In Challis National Forest · Idaho · U.S. Forest Service
Boulder Chain Lakes reaches Willow Lake at 10,189 feet in Challis National Forest. This very difficult 4.0-mile one-way trail passes several alpine lakes and gains 1,731 feet.
2,039 ft of gain round trip.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
What the trail reaches, measured from the start.
The route at the trailhead. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
Campground · Idaho
14.0 mi loop · 3,084 ft gain · Very hard
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No carrier reports signal at this spot.
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Today: Sunny · wind 15 mph S