The Bigfoot 100k begins at Marble Mountain Sno Park and runs around Mt. St. Helens and into the Mount Margaret Backcountry. The course showcases some of the most stunning views of the area including the desolation zone of Mt. St. Helens, hanging lakes, lava fields, long mountaintop ridge lines with stunning forest, mountain and lake views. You might even see a Bigfoot or two… it’s been known to happen in these parts.