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
University of Minnesota Duluth As enrollment increased on the University of Minnesota campus in the Twin Cities in the 1940s, higher education leaders began to debate how to address overcrowding on the state's land grant university campus. During this time City leaders and area state legislators formed a plan to advocate for establishing a branch campus of the University of Minnesota in the City of Duluth. After significant lobbying efforts a bill was drafted and submitted to the legislature that would instead take the Duluth State Teachers College, remove it from the Minnesota State Teachers College system and establish a branch of the University