Course
A 100-mile loop through the Sawatch Range on singletrack, largely along the Continental Divide and Colorado Trails. Runners climb about 23,500 ft and top out at 13,150 ft, crossing five alpine passes, remote basins and two ghost towns. The cut-off for the loop is 37 hours.
Key dates
- ·RegistrationNot open yet
- ★Race dayFri 16 Jul 2027
About
A high-altitude 100-mile ultramarathon through Colorado's Collegiate Peaks Wilderness near Nathrop, climbing over multiple mountain passes above 12,000 feet with sweeping Rocky Mountain views. It's one of the highest-altitude 100-mile races in the country.
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