Thunder River

Welcome to Thunder River!

We are thrilled to share these fall season courses across the iconic Columbia River Gorge! With a purely point-to-point 25K race and an epic lollipop loop 50K, world class scenery, fall foliage and incredible local support, Thunder River ceases to amaze. Both races culminate with a trail loop around Thunder Island surrounded by the mighty Columbia River, just before the finish at Marine Park in Cascade Locks. We simply can’t think of a better way to close out our event season!

Marine Park

The event is staged in the heart of the Gorge at beautiful Marine Park along the banks of the Columbia River in Cascade Locks, Oregon, approximately 40 minutes drive east of Portland. Marine Park offers a number of amenities, including ample parking, indoor space, expansive views up, down and across the river... and ahem, an entire island, Thunder Island that is part of the last mile of the race course!

Daybreak Racing

Daybreak Racing has been hosting trail running events for over 10 years, including Gorge Waterfalls, Hood Hundred, Backcountry Rise, Tillamook Burn, The Big Alta and many more. Our mission is to deliver safe, high quality, homegrown trail race experiences to our participants, filled with spectacular views, challenging trails, good vibes and an exciting finish line experience to celebrate human achievement. We hope you'll join us!

Cancellations

Please review our Cancellation Policy here , which includes a generous race credit policy, pregnancy deferral policy and many other considerations. All runners shall agree to this policy during registration. If a runners needs to withdraw their entry at any time, they must withdraw themselves via their Ultrasignup account.