Spring ultramarathons in United States (Pacific North West)

50K and 25K routes through ancient sand dunes, old-growth forests, remote beaches, and stream crossings in Oregon Dunes National Recreation Area

Challenging 11k loops with steep climbs, rugged shrub-steppe trails, and expansive views of Rattlesnake Mountain and the Columbia River Basin

Twisting singletrack loops through Olympia’s L.B.A. forest park, 200 feet of climb per 4 miles, technical terrain, lush ferns and moss-covered trails

80 miles from the Sol Duc River to Sequim Bay, mixing paved Olympic Discovery Trail and singletrack Adventure Route through forest and waterfront scenery.

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

High desert 55K through packed dirt, loose rock, technical climbs and descents, with sweeping Snake River and Owyhee Valley views near Adrian, Oregon

Scenic 50 km route on Chuckanut Mountain with diverse terrain, Cascade and coastline views, and a challenging course

Badger Mountain Preserve trails with wide-open terrain and sweeping Columbia Basin views in Richland.

Groomed 3.2-mile dirt loop around Green Lake, Seattle; 12-hour timed format with flexible afternoon start options

Pacific Northwest forest loops on wide, rolling trails with 12, 24, and 48-hour endurance formats at Port Gamble Trails

Six laps on scenic single-track trails through dense woods, frequent stream crossings, wildlife sightings, and approximately 566 feet of elevation change per c

Double out-and-back course across asphalt, gravel, and dirt trails with over 10,000 feet of gain through Oregon parkland and small-town landscapes

Dramatic desert trail race through canyon-like gorges, ancient lake edges and cascading waterfalls in central Washington.

6-hour women's trail race in Walla Walla with vineyards celebration, supporting Trail Sisters

Scenic 50K out-and-back on Kelly Ridge, between Olympic National Park and the Strait of Juan de Fuca, with ridge-top Pacific Northwest terrain.

40-mile route on Peterson Ridge and Metolius-Windigo trails, with smooth singletrack, wooded surroundings, and open Central Oregon scenery

Rugged single track and gravel roads through Capitol Forest, scenic ascent to Capitol Peak, expansive vistas, and a demanding mix of climbs and descents

Rolling trails and steep stairs with scenic Sound views, festive atmosphere, handmade bibs, and whimsical prizes in a multi-hour lap format

100K and 50K trail races through the Columbia River Gorge, centered in Cascade Locks with broad river views and a dramatic Gorge backdrop