Mt Sopris Run-off
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Mt. Sopris Run-off: trail races in Carbondale, Colorado
The Mt. Sopris Run-off is a point-to-point trail race day on May 17, 2026 in the Roaring Fork Valley near Carbondale, Colorado. The event offers two distances and uses the iconic Up and Over single track corridor, with a start at Flying Dog Ranch and a finish at Rock Bottom Ranch in Basalt. Early bird race fee is $75 through March 31, then $90. Proceeds benefit Roaring Fork Outdoor Volunteers.
Routes share an opening climb sequence: approximately 1.75 miles on Prince Creek Road, 0.35 miles on Prince Creek Trail, then 0.5 miles on Christmas Tree trail to reach 2.60 miles and a climb of about 725 feet. Runners continue across North Porcupine and Outie before joining Buckhorn.
Distances
- 10-Miler: point-to-point from Flying Dog Ranch to Rock Bottom Ranch
- 28k: longer point-to-point route continuing on Buckhorn Traverse and Glassier
The 10-mile course descends Buckhorn with two aid stations at miles 2.60 and 8.6 supplying water, electrolyte mix, and carbohydrate options. The 28k course adds Buckhorn Traverse and Glassier with a steeper final descent, three aid stations at miles 2.60, 8.6, and 12.7, and a cutoff requirement: runners must pass the second aid station by 2.5 hours from their start or be directed to the 10-mile course.
A Trail Running Film Festival runs the weekend before at the Crystal Theatre; tickets carry a fee and the program is for all ages. Visit the organization's website for the most recent information.
