John Colter Run
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John Colter Run
The John Colter Run is a trail race at Missouri Headwaters State Park near Three Forks, Montana, scheduled for September 19, 2026. The event has a 300 runner cap and does not allow race day registration. Bib pickup occurs at the state park on the morning of the race; there is no separate packet pickup. Finishers receive a race shirt at the finish.
The advertised course is about 7 to 7.5 miles long. The first 1.5 miles are on a paved or gravel country road. The remaining roughly 5.5 miles are on mostly rugged, cross-country trails with two railroad crossings and a final quarter mile that includes two water crossings. Runners must go under the railroad bridge and pass through mud and water or face disqualification. The Gallatin River crossing can reach waist depth; a safety rope will be in place. Trail markers include rock cairns, flags, stakes, tipis, skulls, bones, and small green cones.
Logistics note limited parking near the park and a sprinter shuttle from nearby parking areas. Mid-September weather in Montana can vary widely, so appropriate clothing is advised. Course workers reported occasional snakes on the route. Prizes include commemorative bottles for the first 50 runners to reach the beaver dam, overall and age-group awards, special recognitions, raffle prizes, and a post-race barbecue with beer and live music. Visit the organization's website for the most recent information.
