Bigfoot 20 Mile Run

Cougar, United States • 14 Aug 2026

Bigfoot 20 Mile Run

The Bigfoot 20 Mile Run is a trail race on the slopes of Mount St. Helens in Washington. The course begins at Marble Mountain Sno Park and follows the southwestern side of the volcano. The route is entirely on single-track trails.

Runners pass through varied terrain, including lava fields, areas where streams must be crossed, and sections of old-growth forest. The event has a time limit of 9 hours. It takes place on lands managed by the U.S. National Forest Service. Visit the organization's website for the most recent information.

Race information

20 mi
Bigfoot 20 Mile
Visit the organization's website for the most recent information.
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