Crazy Mountain 100
Always double-check with the organizer's website! This page may contain affiliate links.
Crazy Mountain 100
The Crazy Mountain 100 is a point to point ultramarathon held in the Crazy Mountain Range in Montana on July 24, 2026. The event is a 100 mile course with approximately 23,000 feet of vertical gain and reaches elevations near 10,200 feet. The route is primarily single track and includes long sections with no marked trail, two track, and occasional forest service roads.
Organizers describe the course as extremely rugged with significant exposure, including steep, technical ascents and descents and scree fields. The route crosses private ranchland, public forest service land, and the Indigenous lands of the Apsaalooke, known to some as Awaxaawippíia. The start area is near Wilsall, MT at the intersection of Porcupine Rd and Waltons Rd, and the finish is near the ghost town of Lennep, MT on Berg Rd. The finish area provides camping along a creek and a post race awards event on Saturday night.
The event is a Hardrock and Western States qualifier. Entry is listed at $435; with UltraSignup fees the total shown is $466.77. Entry is capped at 200 runners. Qualifying criteria and the complete race rules apply. Veterans and active US armed forces are eligible for a 10% discount if they provide military ID before registration opens. Visit the organization's website for the most recent information.