2026 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Decision summary
35:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
raceindex.org has a GPS course file for Bighorn Mountain Wild and Scenic Trail Run (Dayton) Ultramarathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Bighorn Mountain Wild and Scenic Trail Run (Dayton) Ultramarathon is described as mountainous. The course listing puts the climb at 6,248 m.
The Bighorn Mountain Wild and Scenic Trail Run (Dayton) Ultramarathon route starts at 52 Mile: starts at the Jaws Trailhead at 5:00 AM and runs point-to-point down to the Scott Park finish in Dayton and finishes at Scott Bicentennial Park, Dayton, Wyoming (all distances finish here). Underfoot, expect 100 Mile: 76 miles of technical single-track trail, 16 miles of rugged 2-track jeep trail road, and 8 miles of gravel road. It passes Tongue River Canyon, Sally's Footbridge, Cathedral Rock, Spring Marsh and Dry Fork Ridge. High-mountain wilderness course with wildlife including elk, deer, moose, black bear, mountain lions and rattlesnakes.
Highway 14 crossing into Dayton is marshalled near the finish. 17. Pacers are permitted at major aid stations.