Embark on an unforgettable journey into the heart of Montana's untamed wilderness with the Crazy Mountain 100, a premier 100-mile ultra taking place on July 24, 2026, in Martinsdale, MT. This isn't just a race; it's a profound expedition across 100 miles of incredibly rugged terrain, featuring approximately 23,000 feet of climbing and reaching elevations of 10,200 feet. The course is predominantly technical single track, interspersed with forest roads, two-track sections, and even stretches where runners navigate by cairns and ridgelines through areas with no discernible trail.

What sets the Crazy Mountain 100 apart is its unparalleled access. The point-to-point course traverses a rare combination of privately owned ranch lands, Indigenous lands of the Apsáalooke (Crow) people—who refer to this range as Awaxaawippíia, meaning "ominous or angry mountain"—and public forest service land. Runners will be treated to breathtaking scenery, from jagged cliffs and scree fields to high alpine lakes and expansive prairie grasslands. This is an intensely challenging "graduate level" race, requiring excellent physical condition and self-sufficiency, as some remote sections between aid stations span over 13 miles. Typical race day conditions in late July see highs around 88°F and lows near 52°F, though the Crazy Mountains are notorious for rapidly changing weather, with storms, hail, and even snow possible on race day.

The Crazy Mountain 100 is celebrated for its grassroots atmosphere and exceptional volunteer support. Aid stations are renowned for their abundant "real food" options, including locally made soups, bacon, and burritos, along with standard ultra-fare and hydration support from Tailwind and LMNT. Keep an eye out for the legendary Cow Camp aid station, a horse-supplied backcountry oasis staffed by enthusiastic volunteers offering hot pizza, cold drinks, and lively entertainment. Runners consistently praise the race for its organization and the dedication of its crews. A Hardrock 100 and Western States 100 qualifier, finishing this demanding event earns you a coveted hand-engraved buckle, with top male and female finishers also receiving custom palm leaf cowboy hats. Prepare to test your grit against the "Angry Mountains" and emerge forever changed.