Spring - Mud Mountain Dam Marathon & Half Marathon

Race Overview

Start Planning Now for Your Next Boston Qualifier!
Get ready to do the dam thing!

Race Details

• Date: 2027-05-29
• Location: 30525 SE Mud Mountain Rd, Enumclaw, WA
• Race URL: Mud Mountain Dam Marathon

Full Marathon

• Start Point: The Marathon starts at Mud Mountain Dam, high above the Carbon River at an elevation of approximately 1,400 feet.
• Course Description: Runners will follow a fully paved downhill route through picturesque farmland and forest, tracing the scenic Carbon River before finishing at the McMillin Farm Collective at approximately 200 feet.
• Elevation Drop: That's a net elevation loss of about 1,200 feet—a fast, scenic course built for a memorable Boston Qualifier!

Half Marathon

• Start Point: The Half Marathon starts in the scenic town of South Prairie at approximately 467 feet.
• Course Description: The race follows a gradual downhill route along the paved Foothills Rail Trail.
• Scenery: Runners will wind through farmland and forest alongside the Carbon River before finishing at the McMillin Farm Collective, at approximately 128 feet.
• Elevation Drop: The course features a net elevation loss of 339 feet.

Celebration at the Finish Line

A Finish Line Worth Celebrating!

• New Finish Line: We've got a brand-new finish line just down the road from the McMillin Bridge, and we’re making it a destination!
• Post-Race Festivities: After crossing the finish line, stick around and celebrate with:
• Brewhouse: Enjoy refreshing beverages.
• Food Trucks: Savor delicious food options.
• Plunge Pools: Experience hot & cold plunge pools.

Additional Information

Beautiful course. Fast downhill miles. Fully paved. No tunnel. No dirt. No BQ penalty.

There’s no excuse not to do the dam thing!