Bigfoot 20 Mile Run

Cougar, United States • 14 Aug 2026

Bigfoot 20 Mile Trail Race

The Bigfoot 20 mile trail run starts at Marble Mountain Sno Park and follows the south western side of Mount St Helens. The course covers 20 miles on National Forest lands and uses only single track trails. A 9 hour cutoff applies to the route.

Runners encounter a variety of volcanic and forested terrain. The route passes lava fields and areas of volcanic rock, includes stream crossings, and traverses old growth forests and mountain slopes. The course is described as mountain running with technical sections and varied ground underfoot.

The event is organized as part of the Destination Trail series and is listed with race dates on multiple years. Course materials include a course map and a runner manual. Photography and race imagery show rocky volcanic scenery, forested trails, and sections with sparse trees and snow patches on higher slopes. Visit the organization's website for the most recent information.

Race information

20 mi
Bigfoot 20m
Visit the organization's website for the most recent information.
Trail runs nearby

Volunteer event at Marble Mountain Sno Park near Cougar, WA where crews carry water into remote aid stations for a race. Each day includes an about nine mile roundtrip hike and nearby camping is available.

A two day trail event at Mt St Helens near Cougar, WA offering a full loop 50K with about 7400 ft elevation and a 25K option over varied volcanic terrain.

A 200 mile point to point trail run through Mount St. Helens and the Cascade Mountains in August 2026, featuring ridgelines, old growth forests, stream crossings and 13 aid stations including six sleep stations.

Trail races near Mount St. Helens in the Mt. Margaret Backcountry, offering 50K, 20 mile and half marathon loops with remote terrain, ridgeline views, lakes and varied wildlife.

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