100mi trail ultramarathons in United States (West Coast)

Point-to-point 100 mile course from Bend to Sisters with 10,900 ft of climb, scenic single-track, rugged terrain, and views beneath Mount Bachelor

25-mile Mt. Spokane loop with technical singletrack, long descents, Selkirk views, and substantial climbing each lap.

100-mile lollipop-style mountain trail route, 17,700 feet of ascent and descent, varied Mt. Hood terrain, finish beneath the volcanic summit

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

Scenic 2-mile loop at Harvey Bear Ranch with hill and mountain views, multiple distance options, generous cutoff times, and a community-focused environment.

Remote Washington Cascades route through Gifford-Pinchot National Forest, deep valleys, wildflower ridges, over 26,000 feet of ascent and descent

Flat 3.1-mile loop on gravel, dirt, grass, and paved surfaces at Kearin Family Farm, with central aid and easy crew access for ultradistance challenges.

Rugged point-to-point course from Williams to Ashland, single track and dirt roads, over 20,000 feet of elevation change, Siskiyou Mountains vistas

Unmarked, minimally supported 51-mile mountain route from Roslyn over rugged ridges and valleys, 10,000+ feet of climbing, remote forest scenery

Looped 0.85-mile paved bike path through scenic Auburn, with picturesque ponds, shaded stretches, and multiple distance options

85 miles of rugged Cascade singletrack and 20 miles of remote forest service roads, 21,000 feet of elevation, self-supported format, mountain vistas

Point-to-point 100 miler in Oregon’s Cascades: mostly Pacific Crest Trail, technical singletrack, alpine lakes, rocky stretches, and big elevation change.

Scenic, well-groomed gravel trails in the Central Cascade Mountains with 50-mile, 100k, and 100-mile distances; convenient crew access and onsite parking

Challenging 50 and 100 mile courses featuring tough climbs and remote trails through the rugged Cascade Mountain Range of eastern Washington

Rugged 100-mile route through the San Gabriel Mountains' primitive wilderness, featuring rough terrain and scenic, largely untouched backcountry

Double out-and-back route on asphalt, gravel, and dirt trails with over 10,000 feet of elevation gain through Stub Stewart State Park and Vernonia Lake

Mountain routes near Los Angeles featuring Big Bear Lake views, Sugarloaf Mountain ascents, and descents into Siberia Canyon

Rugged Lake Sonoma trails with 24,000 feet of elevation gain, fast non-technical sections, winter mud and rain, vibrant start/finish festivities

2-mile double track dirt loop with 128 feet of gain per lap, mountain desert scenery, starlit night running, camping on-site, real bathrooms and aid station

Rugged loops around Lake Perris with 2,300 to 4,500 feet of elevation gain, lake and mountain views, frequent aid stations, and camping on site