August ultramarathons in United States (Southwest)

54K route on the 12-mile DORBA trail at Cedar Hill State Park, moderate to challenging terrain through forests and grasslands by Joe Pool Lake

Remote San Gabriel backcountry route through preserved wilderness, featuring picnic spots, campgrounds, and a demanding 100-mile ultrarunning course

Marathon and 50-mile races through the scenic southern Sangre De Cristo mountains, finishing with a Tooth of Time Ridge descent to Base Camp in Cimarron

High-altitude courses over 10,600 feet, technical trails and remote forest service roads, striking mountain views, and challenging wilderness terrain

High-altitude routes through Utah's remote Tushar Mountains, featuring alpine lakes, rugged peaks, mountain canyons, and a summit of Delano Peak at 12,174 feet.

Demanding climbs and descents through Marin Headlands, starting near Fort Cronkhite and Rodeo Beach, with Pacific and Golden Gate Bridge views

Aspen 50K route featuring demanding ascents, out-and-back to McNamara Hut, diverse terrain, and Elk Mountains scenery, starting at Rio Grande Park

Morning trail run on single and double track paths at Thomas F. Riley Wilderness Park, surrounded by Orange County scenery

High-alpine course over flowing singletrack and rugged mountain paths, finishing in town with mountain views and community atmosphere.

Nighttime high desert 51K along Nevada’s Extraterrestrial Highway with mountain views, wild vegetation, and elevations from 4,000 to 5,600 feet

Loop course from Lake Chabot Marina through East Bay Regional Parks, reaching Skyline Gate, supportive atmosphere, plant-based post-race options

Scenic 51K along the Extraterrestrial Highway with high desert landscapes, starry nighttime skies, UFO lore, and elevations up to 5,600 feet

420-mile route from Salt Lake City to West Yellowstone, mostly paved roads with 50 miles of dirt, expansive terrain and multi-day endurance challenge

Unmarked 90–105 mile route through the San Juans, over 40,000 feet of climbing, five 14er summits, and self-chosen path between checkpoints

100-mile loop around Folsom Lake from Granite Bay Main Beach, passing Loomis, Auburn, and El Dorado Hills with lake and river canyon views

Rugged singletrack trails, steep 7,000-foot elevation gain, exposed ridgeline sections, and mountain views

Rugged 50K course on single tracks and fire roads in Mueller Park, passing through The Great Western, Sessions Mountains, and Kenney Creek

Scenic White Tank Mountain trails and desert landscapes on a 52K night course

Exceptionally challenging Wasatch Mountain loop with over 15,000 feet of elevation change, three major climbs, and a mix of dirt trails, roads, and mountain sc

High-altitude 100-mile route through the La Sal Mountains with approximately 21,000 feet of climbing and descending