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Idaho trails · Boulder Chain Lakes

Boulder Chain Lakes

A 4.0-mile network in Idaho, with 1,421 ft of climbing. Reaches Windy Devil and other lake/pass destinations. Managed by the U.S. Forest Service.

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Length
4.0 mi
Elevation gain
1,421 ft
Difficulty
Hard
Max grade
28%
Steepest mile
+634 ft
Tread at ≥10% grade
1.5 mi
Shape
network
Bikes
yes
Horses
yes
Managed by
U.S. Forest Service

Elevation profile

8,760 – 10,180 ft1234

The climbing is spread fairly evenly along the route. It climbs almost continuously, with little descent to recover on.

3-D terrain

3-D terrain view of Boulder Chain Lakes

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5

Reaches

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:30 a.m., the sun rises at 7:00 a.m. and sets at 8:16 p.m., and the last usable light fades about 8:46 p.m. (MDT) — 13 h 16 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 4.0-mile route takes roughly 2 h 12 min, so leaving the trailhead at sunrise puts you back around 9:12 a.m. — 11 h 04 min before sunset.

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