John Colter Run

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Missouri Headwaters State Park, Three Forks MT

Saturday, September 19th, 2026

Race Day Details

Date: September 19, 2026
Start Time: 9:00 am sharp
Location: Missouri Headwaters State Park, one mile south of Trident, about 6 miles northeast of Three Forks, MT
Parking: Limited availability, please carpool

The Course

Length: Approximately 7 miles
Terrain: First mile and a half on paved/gravel road, remaining 5.5 miles on rugged trails
Historical Note: Trails similar to those used by Lewis and Clark
Crossings: Two railroad crossings with specific safety measures

Water Crossings

First Crossing: Under the railroad bridge, mud can be knee deep
Second Crossing: Gallatin River, water may reach waist deep
Safety Measures: Safety rope will be secured across the river
Extra Gear: Bring a change of clothes for post-race events

Prizes and Awards

Chase the Colter: First 50 runners to beat John Colter to the Beaver Dam will win a special prize
Finish Awards: Given to overall top male and female, age group winners, youngest and oldest runner, and other recognitions
Post-race Party: Join us for a barbeque with beer and live music
Registration Limits: Limited to 300 participants

Important Information

Race Bib Policy: Bibs cannot be transferred: only registered participants will receive them
Registration Opens: April 1, 2026
No Refunds: Entry fees are non-refundable if you cannot run
Cancellation Policy: 50% refund if canceled for extraordinary reasons

Additional Guidelines

No Walkers: Due to the race nature and time constraints
No Dogs: Dogs are not allowed on the race course
Water Station: One station approximately 4 miles into the run
Restroom Facilities: Porta Potties available at the start area only

Thank You to Our Sponsors

Thanks to our sponsors: Headwaters State Park, BNSF, GCC, Main Street Over Easy, Bozeman Speedy Lube, Bozeman Running Co., Bobcat ROTC, Gallatin County Search and Rescue, Lerhkinds, Yellowstone Bank, Dark Horse Construction, and Muddy Dog Sports (Timing).