Scout Mountain Ultras 100 Mile
Scout Mountain's 102.5-mile Idaho course climbs more than 21,000 feet through rugged forest terrain, unpredictable weather, and a Hardrock qualifier.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 21, 2026.
Quick facts
- Hardrock Hundred qualifier with a 102.5-mile course.
- About 21,400 feet of climbing and descending, topping out near 8,686 feet.
- Mandatory course map, emergency blanket, and whistle; a rain jacket may be added.
- Eight-hour trail-service requirement for entrants.
About the Scout Mountain Ultras 100 Mile
Scout Mountain's flagship distance is a demanding tour of the Bannock and Pocatello ranges outside Pocatello. The race pairs a high-mountain course with an eight-hour trail-service requirement and Hardrock qualification.
Course
The route covers 102.5 miles from Lead Draw Trailhead to Mink Creek, ranging from 4,824 to 8,686 feet with about 21,400 feet of climbing and descending. Long remote legs and late miles in the dark make navigation and self-care central.
Race-day weather
Early June can bring snow, mud, hail, heat, and rapid mountain weather shifts. Large swings between exposed ridges, shaded trails, day, and night reward layered gear and conservative pacing.
Past Scout Mountain Ultras 100 Mile dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Friday, June 4, 2027 | Upcoming | — |
| 2026 | Friday, June 5, 2026 | Completed | Open results |
| 2025 | Saturday, June 14, 2025 | Completed | Open results |
| 2024 | Saturday, June 8, 2024 | Completed | Open results |
Scout Mountain Ultras 100 Mile FAQ
When is the Scout Mountain Ultras 100 Mile?
The 2027 Scout Mountain Ultras 100 Mile is on Friday, June 4, 2027.
How do I register for the Scout Mountain Ultras 100 Mile?
Registration for the 2027 Scout Mountain Ultras 100 Mile has not been posted yet.
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