Bigfoot 20 Mile Run

Cougar, United States • 14 Aug 2026

Event

The Bigfoot 20 Mile Run is scheduled for August 14, 2026, in Cougar, WA. The race distance is 20 miles and it begins at Marble Mountain Sno-Park. There is a 9-hour cut-off. Registration closes on August 2.

Course

The course runs along the southwest side of Mount St. Helens, a volcano that erupted in 1980. The route is entirely on single-track trails. Terrain features include lava fields, stream crossings, old-growth forest sections, and mountain trail running. Visit the organization's website for the most recent information.

Race information

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

Join the Bigfoot Fun Run in Yacolt, Washington on July 4, 2026 for a family friendly 5K or 10K run or walk. Day of registration and packet pickup available, so jump in and enjoy a festive holiday race.

Run Volcanic, a rugged trail race on Mt. St. Helens with 50K and 25K courses through boulder fields, river crossings and blast zone terrain. Start and finish at Marble Mountain Sno Park for a true backcountry challenge.

The Bigfoot 200 is a nonstop 208 mile ultramarathon through the Cascade Mountains around Mount St. Helens, featuring lava fields, ridgelines and old growth forests. Expect dramatic views, full aid and designated sleep stations.

Backcountry Rise takes runners into the Mt St Helens backcountry for scenic, rugged trail running. Race 50K, 20 mile, or half marathon loops at Coldwater Lake with aid, camping, and proceeds benefiting the Mt St Helens Institute.