50mi ultramarathons in Arizona, United States in 2027

50-mile loop around Skull Mesa via Trail 4, Chalk Canyon and Seven Springs, with Sonoran Desert singletrack, creekside stretches and rugged canyons

Challenging desert course through Antelope Canyon mesas and secluded slot canyons, with varied terrain, sweeping vistas, and striking rock formations

Rocky Arizona Trail route from historic Kentucky Camp beneath Mt. Wrightson, with desert terrain, mountain views, and Southern Arizona history

Rugged desert singletrack with big climbs, steep descents, rocky footing and White Tank rock scrambling on the longer courses.

Alternating out-and-back 4-mile loops on a dirt Rail-Trail Route through high desert, sandy stretches, and a rocky turnaround near Shonto Marketplace

Sedona west-side trails with flowing singletrack, slickrock plateaus, red rock panoramas, and towering sandstone spires.

Historic Mogollon Rim trail beneath tall pines, with creek crossings, rugged scenery and dramatic vistas in a backcountry mountain setting.