This is it. The race of all races. One hundred miles across the high-altitude, extreme terrain of the Colorado Rockies. Created for only the most determined athletes. Starting at 10,152 feet and climbing to 12,424 feet, you’ll be challenged to catch your breath — while the views try to take it away.

The 100-mile out-and-back course is in the midst of the Colorado Rockies. Low point, 9,200 feet; high point is Columbine Mine, 12,424 feet. Majority is on forest trails with some mountain roads.