Trail Running calendar near Tillamook State Forest 2025-2026

Run the Bigfoot 20 Mile on August 14, 2026 in Cougar, WA, from Marble Mountain Sno Park. Enjoy 20 miles of scenic single track around Mount St Helens through lava fields, stream crossings and old growth forest within a 9 hour cutoff.

Backcountry Rise takes runners into the Mt St Helens backcountry for scenic, rugged trail running. Race 50K, 20 mile, or half marathon loops at Coldwater Lake with aid, camping, and proceeds benefiting the Mt St Helens Institute.

Join the 36th Three Course Challenge at Camp Rilea near Seaside Oregon, a spirited cross country meet for middle and high school runners celebrating the sport since 1990. Multiple scenic courses and lively weekend festivities make this a mu..

Run spectacular waterfall trails at Silver Falls State Park Oct 16 to 18, 2026, with distances from a fun 5K to a challenging 50K. Expect muddy single track, creek crossings and breathtaking waterfalls that reward every step.

Autumn Leaves is a scenic fall ultrarunning event at Champoeg State Park near St Paul, OR offering 30K, 50K and 50M on a fast, mostly paved 10K loop with fall foliage and camping onsite. A free Kids Run adds family fun; bring a cup or hydra..