Duluth, Minnesota Lakes Waterway and the Saint Lawrence Seaway. Duluth forms a metropolitan area with neighboring Superior, Wisconsin, called the Twin Ports. The cities share the Duluth–Superior harbor and together are the Great Lakes' largest port, transporting coal, iron ore (taconite), and grain. A tourist destination for the Midwest, Duluth features the United States' only all-freshwater aquarium, the Great Lakes Aquarium; the Aerial Lift Bridge, which spans the Duluth Ship Canal into the Duluth–Superior Harbor; and Minnesota Point (known locally as Park Point), the world's longest freshwater baymouth bar, spanning . The city is also the starting point for vehicle trips along
Duluth–Superior Dukes Duluth–Superior Dukes The Duluth–Superior Dukes were a professional baseball team based in Duluth, Minnesota. The Dukes were a charter member of the modern Northern League, which started play in 1993. The Dukes played their home games at Wade Stadium. After the 2002 season, the Dukes were moved to Kansas City where they were renamed the T-Bones. The Duluth–Superior Dukes were a re-incarnation of previous minor league teams based in the Twin Ports. The Duluth Dukes and Superior Blues both played in earlier versions of the Northern League, with the two teams merging after the 1955 season. Initially the team was