All Challenges

535 miles from Denver to Durango across eight mountain ranges, six wilderness areas, and seven national forests. The definitive Colorado sufferfest.

812 off-trail miles through Zion, Bryce, Capitol Reef, Canyonlands, Arches, and the Grand Canyon. No maintained path. No safety net.

670 miles of gravel and singletrack through Oregon's Cascades, from the Idaho border to the California line. Dense forests, volcanic craters, and genuine wilderness.

America's oldest long-distance trail: 273 miles from the Massachusetts border to Canada through Vermont's Green Mountains. Muddy, rooted, and relentless.

800 miles from the Mexican border to Utah through Arizona's full ecological diversity — Sonoran desert, Chiricahua sky islands, the Mogollon Rim, and the Grand Canyon.