The Bighorn Trail Run is a legendary ultramarathon set in the Bighorn Mountains of Wyoming, known for its challenging yet breathtakingly beautiful course. Runners navigate steep climbs, technical descents, river crossings, and wildflower-filled meadows, making it one of the most scenic and demanding trail races in the U.S. With distances ranging from 100 miles to 18 miles, the event welcomes both seasoned ultrarunners and those new to mountain trail racing. The remote, rugged terrain and unpredictable mountain weather add to the adventure, while the strong sense of community and excellent race support make it a must-do event for trail enthusiasts. The Bighorn Trail Run is a true test of endurance, grit, and love for the wild.
Race Date:
20 June, 2025
The Bighorn Mountain Trail 100 Mile, organized by the Bighorn Trail Run, is one of the toughest ultramarathons in the U.S., featuring 6,492 meters of elevation gain. This out-and-back course through Wyoming’s Bighorn National Forest tests endurance and mental toughness with steep climbs, rugged terrain, and stunning wilderness views.
Weather based on historical averages.
The Bighorn Mountain Trail 100 Mile, organized by the Bighorn Trail Run, is one of the toughest ultramarathons in the U.S., featuring 6,492 meters of elevation gain. This out-and-back course through Wyoming’s Bighorn National Forest tests endurance and mental toughness with steep climbs, rugged terrain, and stunning wilderness views.
The Bighorn Mountain Trail 100 Mile is 161km long.
The Bighorn Mountain Trail 100 Mile takes place in Sheridan, Wyoming, USA.
The Bighorn Mountain Trail 100 Mile elevation gain is 6492 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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!
The Bighorn Mountain Trail 100 Mile, organized by the Bighorn Trail Run, is one of the toughest ultramarathons in the U.S., featuring 6,492 meters of elevation gain. This out-and-back course through Wyoming’s Bighorn National Forest tests endurance and mental toughness with steep climbs, rugged terrain, and stunning wilderness views.
The Bighorn Mountain Trail 100 Mile is 161km long.
The Bighorn Mountain Trail 100 Mile takes place in Sheridan, Wyoming, USA.
The Bighorn Mountain Trail 100 Mile elevation gain is 6492 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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!
Running
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Bighorn Trail Run or Bighorn Trail Run. 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 Bighorn Trail Run website.