Hosted by Aravaipa Running, the course is 100% soft-surface with long stretches of flowing singletrack and a few short double-track sections—built for steady rhythm and beautiful miles just southwest of Denver. The route rolls through open burn areas from the 1990s fire before re-entering stands of ponderosa pine and looping past granite outcrops, delivering big-sky views without extreme technicality. With two distances—50M and 50K—it’s a Colorado favorite for both first-time ultra runners and veterans chasing fast trail finishes.
Races
50 miles
50 km
Race Date:
30 May, 2026
The North Fork 50 Mile 2026, organised by Aravaipa Running, will be held on Saturday, 30 May 2026, starting and finishing at the Buffalo Creek Clubhouse in Buffalo Creek, Colorado—just southwest of Denver. This epic single-loop trail ultra covers approximately 50 miles of predominantly soft-surface singletrack through burn-scarred landscapes and ponderosa forest—ascending to about 8,400 ft and offering runners forested grandeur, community support, and proceeds benefitting the North Fork Volunteer Fire Department.
Race Date:
30 May, 2026
The North Fork 50 K 2026, also hosted by Aravaipa Running, takes place on 30 May 2026 at the Buffalo Creek Clubhouse, Buffalo Creek, Colorado. This 50 K trail runs one loop of technical singletrack—featuring climbs into the 8,100 ft range, forested canyons, and proceeds that give back to the local community.
Weather based on historical averages.
FAQs
What is the North Fork 50 Mile?
How long is the North Fork 50 Mile?
Where does the North Fork 50 Mile take place?
What is the elevation gain of the North Fork 50 Mile?
How can I prepare for the North Fork 50 Mile?
How do I choose the right training plan for the North Fork 50 Mile?
The North Fork 50 Mile 2026, organised by Aravaipa Running, will be held on Saturday, 30 May 2026, starting and finishing at the Buffalo Creek Clubhouse in Buffalo Creek, Colorado—just southwest of Denver. This epic single-loop trail ultra covers approximately 50 miles of predominantly soft-surface singletrack through burn-scarred landscapes and ponderosa forest—ascending to about 8,400 ft and offering runners forested grandeur, community support, and proceeds benefitting the North Fork Volunteer Fire Department.
The North Fork 50 Mile is 80km long.
The North Fork 50 Mile takes place in Buffalo Creek, CO, USA.
The North Fork 50 Mile elevation gain is 1958 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the North Fork 50 Mile?
The North Fork 50 Mile 2026, organised by Aravaipa Running, will be held on Saturday, 30 May 2026, starting and finishing at the Buffalo Creek Clubhouse in Buffalo Creek, Colorado—just southwest of Denver. This epic single-loop trail ultra covers approximately 50 miles of predominantly soft-surface singletrack through burn-scarred landscapes and ponderosa forest—ascending to about 8,400 ft and offering runners forested grandeur, community support, and proceeds benefitting the North Fork Volunteer Fire Department.
How long is the North Fork 50 Mile?
The North Fork 50 Mile is 80km long.
Where does the North Fork 50 Mile take place?
The North Fork 50 Mile takes place in Buffalo Creek, CO, USA.
What is the elevation gain of the North Fork 50 Mile?
The North Fork 50 Mile elevation gain is 1958 metres, which Runna classifies as a Hilly race.
How can I prepare for the North Fork 50 Mile?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the North Fork 50 Mile?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the North Fork 50km?
How long is the North Fork 50km?
Where does the North Fork 50km take place?
What is the elevation gain of the North Fork 50km?
How can I prepare for the North Fork 50km?
How do I choose the right training plan for the North Fork 50km?
The North Fork 50 K 2026, also hosted by Aravaipa Running, takes place on 30 May 2026 at the Buffalo Creek Clubhouse, Buffalo Creek, Colorado. This 50 K trail runs one loop of technical singletrack—featuring climbs into the 8,100 ft range, forested canyons, and proceeds that give back to the local community.
The North Fork 50km is 50km long.
The North Fork 50km takes place in Buffalo Creek, CO, USA.
The North Fork 50km elevation gain is 1119 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the North Fork 50km?
The North Fork 50 K 2026, also hosted by Aravaipa Running, takes place on 30 May 2026 at the Buffalo Creek Clubhouse, Buffalo Creek, Colorado. This 50 K trail runs one loop of technical singletrack—featuring climbs into the 8,100 ft range, forested canyons, and proceeds that give back to the local community.
How long is the North Fork 50km?
The North Fork 50km is 50km long.
Where does the North Fork 50km take place?
The North Fork 50km takes place in Buffalo Creek, CO, USA.
What is the elevation gain of the North Fork 50km?
The North Fork 50km elevation gain is 1119 metres, which Runna classifies as a Hilly race.
How can I prepare for the North Fork 50km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the North Fork 50km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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Sport:
Running
Tags:
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by North Fork 50 or Aravaipa Running. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the North Fork 50 website.
