Mill Plain
Trail Running Calendar near Mill Plain 2026-2027
Explore the top trail runs near Mill Plain for 2026-2027! We've gathered 20 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
A 20 miles long single track trail race along Mount St. Helens' southwestern side, starting at Marble Mountain Sno Park, with lava fields, stream crossings and old growth forest.
September 2026
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
Timed endurance event at Donald Farm in Woodland WA with 6 hour, 12 hour, and 24 hour formats on a 1 mile loop through the Warrior Expo.
Point-to-point 50K on the Pacific Crest Trail from the South Washington Cascades to the Columbia River Gorge, featuring four aid stations and about 5,600 ft of climbing.
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
A 3.1 mile obstacle run with 22 symbolic obstacles representing the journey from captivity to liberation. Held in Happy Valley, OR on September 26, 2026, all proceeds support organizations that fight human trafficking and survivor rehabilitation.
A five-race cross country series in Portland parks with separate men’s and women’s races, options for non-binary entrants, race distances of 5K 6K and 8K, and both series and individual registration fees.
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
October 2026
A last person standing trail race on Hamilton Island in the Columbia River Gorge where runners repeat a 4.13 mile loop each hour and must finish each loop in under 60 minutes to continue until one runner remains.
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
A Halloween-themed race day at Pacific Community Park featuring youth and community 2k–5k courses on grass and compact trail, with medals and holiday prizes.
A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.
Trail races through Columbia River Gorge scenery with 25K point to point and a 50K loop, finishing at Marine Park in Cascade Locks.
December 2026
January 2027
April 2027
Scenic trail races through the Columbia River Gorge staged at Marine Park in Cascade Locks, offering 100K, 50K and 30K distances, on-site Thunder Island camping, chip timing, stocked aid stations, and a $75,000 prize purse.