Mountain Lakes 100

The Mountain Lakes 100 unfolds in the forests around Olallie Lake, Oregon, on a rugged course that alternates between deep timber and wilder, more remote sections of trail. As the name promises, the full distance covers 100 miles of Cascade backcountry.

Runners spend long hours moving through dense forest canopy interspersed with more exposed, untamed stretches of trail, a combination that rewards patience and self-sufficiency over sheer speed. It's a true test of endurance set against the quiet, lake-dotted terrain of the Oregon Cascades, with the forest itself as the defining feature of the route from start to finish.