The High Lonesome 100 is a challenging endurance race set in Colorado's stunning Sawatch range. Spanning 101 miles, the course features a staggering 23,500 feet of elevation gain, peaking at 13,100 feet. Runners will experience breathtaking scenery while traversing the Continental Divide and Colorado Trail, passing through two ghost towns, scaling five alpine passes, exploring remote basins, and navigating soaring ridges. The race embodies the spirit of classic ultramarathons and is facilitated by a dedicated community of experienced staff and volunteers. With 66% of the course on single track and a blend of mining and gravel roads, this race offers a true test of endurance and an unforgettable mountain running experience.