Bigfoot 20 Mile Run

AUG
14
2026
The Bigfoot 20 Mile Run is a trail adventure on the iconic Mount St. Helens. The single-track course takes runners past lava fields, through old-growth forests, and across streams on the volcano's southwestern flank.
Fri 14 Aug 2026

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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.

20 Miles