The Full Marathon returns in 2026, offering runners a prime opportunity to secure a Boston Qualifier on a fast, fully paved downhill course. Starting at the scenic Mud Mountain Dam, the route winds through picturesque farmlands and lush forests while tracing the path of the Carbon River. Participants will enjoy a significant net elevation loss of 1,200 feet, free from tunnels or dirt sections. The Half Marathon offers a similarly scenic experience, beginning in the town of South Prairie and following the paved Foothills Rail Trail. Both distances culminate in a memorable finish in front of the...


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30525 S.E. Mud Mountain Rd.
Enumclaw, WA 98022