6hr ultramarathons in Oregon, United States

1-mile loop on hard packed dirt, grass, gravel, and asphalt in Bush’s Pasture Park, gentle terrain with central aid station and accessible crew area

Rugged Mount Bachelor alpine trails with steep climbs, high-elevation terrain from 7,280 to 9,027 feet, runnable lower sections, and festive aid stations.

Mixed trails and pavement loop, cultural celebrations, and options from 12 to 48 hours with finisher medals and belt buckles for milestone distances

3.6-mile forested loop around Suttle Lake with 110 feet of elevation gain, soft trails, some roots, non-technical terrain, and fall scenery

Looped course at Linfield University with solo and relay options, timed races of varying lengths, on-course aid stations, and eco-friendly focus

Short-loop format at Cline Buttes, with repeated 0.4-mile climbs gaining about 870 feet and sweeping high-desert views of the Three Sisters Wilderness.

1-mile trail loop with gentle inclines, river views, and varied terrain; automated lap counting, onsite tent camping, and Root Beer mile

Flat 1.05-mile loop with minimal elevation change, multiple distance formats, accessible state park setting, frequent aid stations, supportive atmosphere