Mud Mountain Dam Marathon
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Spring - Mud Mountain Dam Marathon & Half Marathon
The event takes place on May 30, 2026, in Enumclaw, Washington (98022). It includes a full marathon and a half marathon. The races finish in front of the historic McMillin Bridge.
Distances
- Marathon - Full marathon starting at Mud Mountain Dam, net loss ~1,200 ft
- Half Marathon - Half marathon starting in South Prairie, net loss 339 ft
Courses
The marathon begins at Mud Mountain Dam (elevation 1,400 ft) and follows a fully paved route through farmland and forest alongside the Carbon River. The course records an approximate net elevation loss of 1,200 ft and finishes at the McMillin Bridge.
The half marathon begins in South Prairie (elevation 467 ft) and runs mainly along the paved Foothills Rail Trail. The half course follows farmland and forest beside the Carbon River and finishes at the McMillin Bridge with a net elevation loss of 339 ft.
Additional information
A small tariff surcharge of $2.00 applies. Volunteer sign-up is available, with volunteer offerings to be announced. The event location street address is 30525 S.E. Mud Mountain Rd., Enumclaw, WA 98022. Visit the organization's website for the most recent information.
