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 marathon, half marathon, and 5K distances. The marathon starts at Mud Mountain Dam Park, descending 1,191 feet through forested areas, neighborhoods, and along the Carbon River, finishing at the historic McMillin Foothills Bridge.

The half marathon begins in South Prairie and follows a paved, gradual downhill route with a 339-foot elevation loss, also finishing at McMillin Bridge. The 5K is an out-and-back course starting and ending at the McMillin Bridge. The event offers well-supported aid stations, finisher medals, tech shirts, and shuttle services, creating a friendly and well-organized atmosphere for runners of all levels. Visit the organization's website for the most recent information.