Mud Mountain Dam Marathon

The Mud Mountain Dam Marathon, organized by the Tacoma City Marathon Association, is a scenic fall running event held in Washington state. It features a marathon, half marathon, and 5K race. The marathon starts at Mud Mountain Dam (elevation 1,400 feet) and follows a paved, downhill course through farmlands and forests along the Carbon River, finishing at the historic McMillin Bridge with a net elevation loss of about 1,200 feet.

The half marathon begins in South Prairie and runs a gradual downhill route on the Foothills Rail Trail, also finishing at McMillin Bridge. The 5K is an out-and-back paved trail race starting and ending at the McMillin Foothills Trail Bridge. The event offers aid stations, shuttle services, finisher medals, and race swag, creating a supportive and picturesque atmosphere for runners of all levels. Visit the organization's website for the most recent information.