Crazy Mountain 100
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Crazy Mountain 100
The Crazy Mountain 100 is a 100 mile mountain ultramarathon held July 30 and 31, 2027. The course runs from the Westling Ranch area near Wilsall, Montana to the Berg Ranch near Lennep, Montana. The route passes over private land, public land and national forest areas under special permit from the U.S. Forest Service.
The race traverses rugged terrain including jagged cliffs, scree fields, and high alpine lakes. The range lies on Indigenous Apsaalooke lands and is known in the Apsaalooke language as "Awaxaawippíia." Awaxaawi means "mountain" and ppíia is translated as "ominous" or "angry."
Two family-owned cattle ranches host the event. The start area is on the Westling Ranch in the Wilsall valley; the finish takes place on the Berg Ranch near Lennep. The Berg Ranch was established in 1890, historically transitioned from sheep to beef production, and currently raises Red Angus cattle. Both ranches are described as multi-generational and involve land stewardship.
Race operations include packet pickup and drop bag service at the finish-area ranch the day before the race; there is no race day drop bag service or late check-in. A shuttle from the finish to the start is provided on race day. Camping at the start is available the day before; the finish area hosts a post-race meal, awards ceremony and an open finish area during race day. A lottery application period is noted from December 1 to December 12. Visit the organization's website for the most recent information.
