High Lonesome 100 Mile

The High Lonesome 100 Mile is a 100-mile (160.9 km) ultra trail race around Mount Lincoln in the Colorado mountains, held July 16–17, 2027. The course crosses high-altitude mountain and forest terrain, with about 23,500 feet (7,162 m) of elevation gain, which makes it a particularly demanding race physically.

Runners face varied ground, from technical trails to faster, more runnable stretches, with plenty of climbing given the overall altitude of the route. The race is meant for experienced ultrarunners who can manage a very long effort in a high-mountain environment.