100mi trail ultramarathons in United States (Pacific North West)

High desert landscape with intense heat, steep gulches, massive rock hoodoos, significant elevation changes, and dry, challenging terrain

100-mile course with 23,000 feet of elevation gain, 32 miles on the Pacific Crest Trail, and a 2.3-mile section through Snoqualmie Tunnel

Backcountry courses in the Pioneer Mountains featuring rugged trails, steep ascents up to 11,000 feet, long aid station gaps, and alpine scenery

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 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

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

Remote, demanding mountain ultramarathon starting and finishing at Jug Mountain Ranch, featuring rugged terrain and long stretches between aid stations

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

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

Exceptionally flat ultramarathon along the historic 56-mile Willapa Hills Trail, featuring rolling hills, rivers, and farmstead scenery in southwest Washington.

Multi-distance looped course connecting Bainbridge Island’s top public and private trail networks, with February weather and minimal road segments

100.8-mile Orcas Island loop with steep singletrack, mountain lakes, ancient forests, Salish Sea views, and 26,000 feet of elevation gain

Flat, scenic dirt trail loop at Eagle Island State Park near Boise, Idaho