Crazy Mountain 100

The Crazy Mountain 100 is a unique 100-mile ultra marathon set in the rugged Crazy Mountain Range of Montana, featuring approximately 23,000 feet of vertical gain. As the only 100-mile event in the state, it serves as a qualifier for the Western States race. The course is primarily single track, with extreme technical descents and ascents, and includes sections with no established trails. Hosted by local ranches, the event emphasizes inclusivity and aims to provide participants with a transformative experience amidst stunning landscapes and rich Indigenous history. Registration is limited to 200 runners, making early entry advisable. Visit the organization's website for the most recent information.