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John Colter Run

Date
September 19, 2026
Distance
John Colter Run
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From the Organizer

Race day is September 19, 2026, and will start at 9:00 am sharp when the ole 50 caliber Hawkins black powder rifle goes off.  The Race begins and ends at the Missouri Headwaters State Park – one mile south of Trident and about 6 miles northeast of Three Forks, MT. Take Exit 278 off I-90. Follow signs to Headwaters State Park and Trident. Parking is limited. Please carpool.

 

The Course:  The course is approximately 7 miles long, with the first mile and a half on a paved/gravel country road, and the remaining 5.5 miles on mostly rugged trails, just like it was when Lewis and Clark came through here.  The trail portion is relatively rough but suited for cross-country running.  There are two railroad crossings.  BNSF will stop ALL trains at the first crossing just after the start where we will have a crossing guard. They only do this for two events in Montana!  The second crossing goes UNDER the railroad tracks and by the time you get there the trains will be running again.  You MUST go under the railroad bridge and through the water and mud or you will be disqualified.  The first railroad crossing is 1.5 miles from the start and the second is about 7 miles into the race.  The trail is marked with rock cairns, flags, stakes, skulls, bones, and beer bottles.

 

Water Crossings: The last ¼ mile of the course encompasses two water crossings.  The first water crossing goes under the railroad bridge (as stated above).  Tie your shoes tight because the mud can be knee deep!  The second water crossing is the Gallatin River.  Be prepared for water up to waist deep at each crossing.  A safety rope will be secured across the river.  Bring an extra change of clothes for the awards ceremony and refreshments.

 

To sweeten the deal, we have some great prizes this year!  We’ll have our own “John Colter” and you will be chasing him down.  The first 50 runners that beat John to the “Beaver Dam” approximately 6.5 miles in) will win a "special prize" for their extraordinary effort!  Finish awards will be presented to overall top male and female; age group winners; youngest and oldest runner; and special awards to those we think need to be recognized!  Afterward, all are welcome to join us for a post-race party barbeque with beer and great live music!  

 

IMPORTANT INFO - PLEASE READ  

OUR INSURANCE DOES NOT ALLOW YOU TO GIVE OR SELL YOUR RACE BIB TO SOMEONE ELSE IF YOU CANNOT RUN THE RACE.  While it may seem like a good intention, it has many negative implications to the organizers and participants including liability, timing, results, awards and many other factors.  Race bibs will only be given out to those registered for the event.

 

WE ARE LIMITED TO 300 PARTICIPANTS!  Registration Opens on April 1, 2026, SO RESERVE YOUR SPOT AND SIGN UP EARLY!  

 

WE DO NOT REFUND ENTRY FEES IF YOU CANNOT RUN THE RACE.   The transaction fee will be paid by the participants.

 

We do not have a roll over option from last year.    

 

Please note, race shirts are only awarded to finishers.

 

If for an extraordinary reason, such as fire or pandemic, we have to cancel the race we will refund 50% of the entry fee.  If we have to cancel the race you may elect to donate to the race.  All proceeds over the costs already incurred will be donated to Headwaters State Park so that we may continue to enjoy the beautiful area. However we promise to do everything we can to make sure we can have the John Colter Run again this year.  In the meantime, we hope you have the ability to get out, breathe some fresh air, and enjoy your favorite places.

 

IMPORTANT -Due to time constraints and the nature of the race, walkers are not permitted. - No dogs allowed on the race course. There will be one water station approximately 4 miles into the run.  Porta Potties are at the start area only.  AND unless there is some catastrophic event beyond our control, the race will not be cancelled.  Rain and Snow do not constitute such an event.

 

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) 

Events

John Colter Run9 AMRegister →

Weather

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

72°

Typical Low

43°

Chance of Rain

20%

Based on US Climate Normals data from Trident, 6 mi from the venue.

Sunrise 7:10 AMSunset 7:31 PMDaylight 12h 21m

Host City

About Three Forks, MT

Elevation

4,075 ft

Nearest Airport

BZN

Bozeman Yellowstone International Airport · 20 mi

Time Zone

Mountain Time

From Endurance Grid

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Race Location

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Waiting For?

Every finish line starts with a single decision. Claim your spot at John Colter Run, put it on the calendar, and turn “someday” into a start date.

103

Days to train

Race
John Colter Run
Date
September 19, 2026

From Endurance Grid

About This Sport

Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.

With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.

Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.

Read the Guide

Running

From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Frequently Asked Questions (FAQs)

What is the John Colter Run?
John Colter Run is a running race held in Three Forks, Montana on September 19, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the John Colter Run?
Saturday, September 19, 2026 in Three Forks, Montana at Missouri Headwaters State Park, Three Forks, MT. Check the event page for exact start times and wave schedules.
How do I register for the John Colter Run?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

John Colter Run

Sep 19, 2026

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