2026 Idaho Mountain Trail Ultra Festival

Race Information

IMTUF 100 is a beautiful, tough, and epic 100-mile race starting and finishing at Jug Mountain Ranch in McCall, ID. According to race organizers, this is a post-doctoral-level mountain race for those who have the skillset acquired from a lifetime of rugged mountain travels. Before registering, do your research and make sure this kind of race is for you, and keep training with a relentless passion for a life-changing experience in the Salmon River Mountains of Idaho.

The event also features a beautiful and tough 20-mile race option.

👍 Run Series Pick of the Month: Vacation Races

Why settle for a finisher’s medal and a banana in a parking lot when you could run near Zion, Jushoa Tree, Yosemite, or Mount Rushmore?

Why We Like This Series

✅ Bucket list destination runs
✅ Multiple distances
✅ Medals worth framing

🎟 Save $10 on any Vacation Races event
Use Code VRRUNGUIDES

Vacation Races aren't just about the miles; they’re about the memories. Curate world-class running experiences in the most breathtaking destinations in the U.S.

Whether you’re a seasoned ultra-runner or a first-time 5Ker, "race day" will be the centerpiece of your next great adventure.

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