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Oregon trails · Main Trail South

Main Trail South

A 27.1-mile point-to-point in Oregon, with 791 ft of climbing. Reaches Sage Spring and other lake/pass/spring destinations. Managed by the U.S. Forest Service.

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Length
27.1 mi
Elevation gain
791 ft
Difficulty
Hard
Max grade
13%
Steepest mile
+328 ft
Tread at ≥10% grade
0.1 mi
Shape
point-to-point
Managed by
U.S. Forest Service

Elevation profile

5,239 – 6,018 ft147101316192225

The climbing leans toward the first third: 49% of the ascent falls between mile 0.0 and mile 9.0. It gives back about 1,409 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Main Trail South

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

Reaches

Getting there

Main Trail South access — parking nearby. 42.08519, -120.70688 · directions

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:58 a.m., the sun rises at 6:27 a.m. and sets at 7:38 p.m., and the last usable light fades about 8:07 p.m. (PDT) — 13 h 11 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 27.1-mile route takes roughly 10 h 27 min, so leaving the trailhead at sunrise puts you back around 4:54 p.m. — 2 h 44 min before sunset.

Loop options