Top 10 Hardest Ultras in America
Bighorn Trail Run 2026
June 19–20 · Bighorn National Forest
4 Distances: 18 / 32 / 52 / 100 Miles · UTMB Qualifier · Rocky Mountain Slam
WHEN
June 19–20, 2026
100M starts Friday 5 AM
Shorter races: Saturday
WHERE
Bighorn National Forest
Finish: Scott Park, Dayton
Packet pickup: Sheridan
DISTANCES
18 · 32 · 52 · 100 mi
18M SOLD OUT
35-hr cutoff (100M)
THE VIBE
20,500 ft ascent
"One of the classics"
Since 1993
Race Distances
Four distances through some of the most remote and beautiful terrain in Wyoming. All courses finish at Scott Park in Dayton.
Race Weekend Logistics
Dayton Finish Line
Scott Bicentennial Park, Dayton WY — 25 min drive from Sheridan. Showers, food, beer, live music, and awards at the finish celebration.
Packet Pickup
Best Western Sheridan Center, downtown Sheridan. Walking distance from most Wyo Stays properties. Day before race start.
Crew & Pacers
Crew access is limited on the course. Check bighorntrailrun.com for designated crew access points and pacer rules by distance.
Wildlife Advisory
You're running through remote Bighorn National Forest. Elk, moose, black bear, mountain lions, and rattlesnakes (lower elevations) are all possible. Stay alert.
Where to Stay for Race Weekend
Packet pickup is at Best Western Sheridan Center in downtown Sheridan. Runners, pacers, and crew need a base — Sheridan has everything you need.
Why vacation rental for race weekend:
✓ Full kitchen for pre-race fueling and recovery meals
✓ Washer/dryer (you WILL need this after 100 miles of mud)
✓ Space for crew and pacers to sleep and stage gear
✓ Drop bag prep space — spread out, organize, focus
✓ Multiple bedrooms for team/family logistics
✓ Quiet recovery — no hotel hallway noise at 3 AM
Downtown Sheridan
Near packet pickup
Sleeps 8+
Space for crew & pacers
Pet-Friendly
Bring the whole team
Affordable Adventures
Best value in WY