Willamette National Forest · Oregon

Olallie

23 mi of trail, end to end · about 4,900 ft of climbing · 2,565 ft–5,250 ft · native material surface · trail No. 3529 · trail class 3 · typical grade 12-20% · tread 12-18 inches wide · hiking, horse, bike

5,177 ft 2,721 ft · 14 mi high 5,225 ft

Trailheads Horsepasture Trailhead 4,729 ft Drive there · Olallie North Trailhead 2,544 ft Drive there · Olallie South Trailhead 2,670 ft Drive there · Pat Saddle Trailhead 4,534 ft Drive there

Horsepasture Trailhead the Forest Service's write-up

This trailhead provides access to:

Olallie Trail #3529

Horsepasture Mountain Trail #4347

O Leary Mountain Trail #3321

See Trail page for more information.

This trailhead on fs.usda.gov

Olallie North Trailhead the Forest Service's write-up

This trailhead provides access to:

Olallie Trail #3529

O'Leary Mountain Trail #3321

Horsepasture Mountain Trail #4347

See Trail page for more information.

This trailhead on fs.usda.gov

Olallie South Trailhead the Forest Service's write-up

This trailhead provides access to:

Olallie Trail #3529

Frissel Crossing Trail #3320

South Fork McKenzie Trail #3327

Wildcat Swamp Trail #3331

See Trail page for more information.

Restrictions <ul><li><a href="http://www.fs.usda.gov/detail/willamette/?cid=stelprdb5097165">Wilderness Regulations</a></li><li><a href="http://www.fs.usda.gov/detail/willamette/?cid=stelprdb5098066">Weed Free Feed Required</a></li></ul>

This trailhead on fs.usda.gov

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About this trail's facts

The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.