⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (October 4, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
Held in the beautiful McDonald Forest near Corvallis, Oregon, this classic 15.5-mile (25K) trail run starts and finishes at Peavy Arboretum and delivers everything trail runners love: rolling climbs, forest paths, and plenty of flow.
With roughly 2,400 feet of combined elevation gain and loss and about 80 percent singletrack, the course winds through the forest, offering a solid mix of challenge and runnable terrain, with a touch of forest road thrown in for variety. All proceeds benefit trail maintenance in McDonald Forest and the Corvallis Mountain Rescue Unit, helping keep this exceptional place safe and accessible for everyone.
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Races nearby
Other upcoming races around Corvallis.
Mac Forest Trail Run
Mar 13, 2027 · Corvallis, OR · 0 mi away
3.1 mi · 9.3 mi
McDonald Forest Trail Runs
Mar 13, 2027 · Corvallis, OR · 0 mi away
3.1 mi · 9.3 mi
McDonald Forest
May 1, 2027 · Corvallis, OR · 0 mi away
31.1 mi
Run for the Hills - Corvallis
May 30, 2027 · Corvallis, OR · 2 mi away
18.6 mi · 5 mi · 2 mi
Mudslinger Trail Run
Apr 3, 2027 · Blodgett, OR · 13 mi away
13 mi
Marys Peak Trail Run
Jun 12, 2027 · Blodgett, OR · 13 mi away
15.5 mi · 31.1 mi · 62.1 mi