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Idaho trails · Timber Mountain Trail

Timber Mountain Trail

A 13.5-mile out-and-back in Idaho, with 3,835 ft of climbing. Reaches Timber Mountain and other lake/summit destinations.

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Length
13.5 mi
Elevation gain
3,835 ft
Difficulty
Expert
Max grade
44%
Steepest mile
+968 ft
Tread at ≥10% grade
6.3 mi
Shape
out-and-back

Elevation profile

2,556 – 6,391 ft12345678910111213

Most of the climbing sits in the first third — 62% of the ascent, between mile 0.0 and mile 4.5. It gives back about 2,639 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Timber Mountain Trail

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

Reaches

Getting there

East Fork Boulder access. About 2 h 10 min drive (79 mi, 8 of them unpaved) from Sandpoint. 48.59766, -116.09252 · directions

Daylight at the trailhead

On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:31 a.m., the sun rises at 7:02 a.m. and sets at 5:57 p.m., and the last usable light fades about 6:28 p.m. (PDT) — 10 h 55 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 27.0-mile round trip works out to roughly 13 h 51 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.

Nearby trails