John Colter Run

SEP
19
2026
Experience a historic re-enactment through the rugged trails of Missouri Headwaters State Park. This unique 7.5 mile run features deep mud, river crossings, and wild Montana terrain for a limited field of 300 participants.
Sat 19 Sep 2026
8 miles

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Event Overview

The John Colter Run is a trail race held at Missouri Headwaters State Park, located near Three Forks, Montana. The event commemorates a historical escape by re-enacting a specific cross-country journey through rugged terrain. The race is limited to 300 participants and does not permit walkers due to time constraints and the specific nature of the course.

Course Details

The course covers approximately 7.5 miles. It begins with 1.5 miles on a paved and gravel country road before transitioning into 5.5 miles of rugged trails. The trail sections are marked with various objects including rock cairns, flags, stakes, and bones. The terrain features two railroad crossings; the first is managed by crossing guards, while the second requires runners to pass under a bridge through water and mud.

Water and mud are significant features of the final section of the race. Participants encounter two major water crossings in the last quarter mile, including a crossing of the Gallatin River where water depths can reach waist-high. A safety rope is provided for the river crossing. One water station is located approximately four miles into the run.

Distances and Participation

The event offers the following distance:

  • 7.5 Miles

The race includes a competitive element where runners attempt to overtake a designated lead runner representing John Colter. Participants must be registered individually, as bib transfers are not permitted. Dogs are not allowed on the course. Finishers receive a race shirt, and various awards are presented across age groups and overall categories at a post-race gathering featuring a barbeque and music. Visit the organization's website for the most recent information.

8 mi
John Colter Run
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