Idaho trails · Lost Horse Trail
Lost Horse Trail
A 26.6-mile point-to-point in Idaho, with 4,747 ft of climbing. Reaches Lost Horse Pass and other lake/pass/summit destinations.
Elevation profile
Most of the climbing sits in the first third — 61% of the ascent, between mile 0.0 and mile 8.9. It gives back about 4,437 ft along the way, so it rolls rather than climbing steadily.
3-D terrain
USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Reaches
- Lost Horse Pass (pass)
- Wahoo Pass (pass)
- Freeman Peak (summit)
- Upper Twin Lake (lake)
- Mud Lake (lake)
- Indian Lake (lake)
Getting there
TWIN LAKES TRAILHEAD — parking nearby, restroom, water. 46.15930, -114.49790 · directions
Daylight at the trailhead
On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 7:23 a.m., the sun rises at 7:53 a.m. and sets at 6:53 p.m., and the last usable light fades about 7:23 p.m. (MDT) — 11 h 00 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 26.6-mile route works out to roughly 12 h 14 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.