Thunder River

Cascade Locks, United States • 31 Oct 2026

Thunder River - Cascade Locks, OR

Thunder River takes place on Saturday, October 31, 2026 at Marine Park along the Columbia River in Cascade Locks, Oregon. The event offers two trail race distances:

  • 50K lollipop loop course
  • 25K point to point course

Both courses include a trail loop around Thunder Island in the final mile and finish at Marine Park. The races are staged in the Columbia River Gorge during the fall and feature river views and seasonal foliage. Marine Park provides amenities such as ample parking, indoor space, and expansive views across the river. The venue is approximately a 40 minute drive east of Portland.

Daybreak Racing organizes the event and has hosted trail running events for over 10 years. Registration closes on Sunday, October 25, 2026 at 11:59 PM PT. The event cancellation policy includes a race credit option and a pregnancy deferral; all runners must agree to the policy during registration. Runners who need to withdraw their entry must do so through their registration account. Visit the organization's website for the most recent information.

Race information

50 km
50k
25 km
25k
Visit the organization's website for the most recent information.
Trail runs nearby

Run through single track forest trails and across rustic bridges at Timothy Lake. This Oregon trail event offers marathon and half marathon distances with scenic views of Mt. Hood in the Cascade Mountains.

A half marathon and 4 mile trail event on June 13, 2026 in White Salmon, WA, starting at Rheingarten Park. The Lollipop course features hilly trail loops, three aid stations, and benefits the White Salmon Cross Country program.

An adventure race on June 14, 2026 at White River West Sno Park near Mt Hood, Oregon, featuring a roughly 6 miles off road course, advance registration, a $50 entry fee, and camping near the start and finish.

An all women trail race weekend at the base of Mt. Adams in Trout Lake WA, June 19 to 21, 2026, offering 50k, marathon, half marathon and relay options, plus camping, panels, workshops and post-run recovery amenities.

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