High Lonesome 100

Dare to take on the High Lonesome 100, a high altitude ultra-marathon that will test your grit and reward your senses. This rugged race weaves through the breathtaking Sawatch range of the Colorado Rocky Mountains, packing an incredible 23,500 feet of vertical gain. Expect the unexpected as your journey takes you through single track beauty, across the Continental Divide and Colorado Trail, past ghost towns, over five alpine passes, remote basins, and majestic ridges—that's the true mountain race spirit! With an entry fee of $450, join a community of passionate runners and superb organizers ready to welcome you in our 6th year. Embrace the challenge and become part of the legend in the vast skies of Colorado!