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 system The University of Minnesota Twin Cities and the Crookston, Duluth, and Morris coordinate campuses are accredited by the Higher Learning Commission (HLC). The other public system of higher education in the state is the larger Minnesota State Colleges and Universities system (Minnesota State system). The flagship Twin Cities campus is by far the largest in the system, with a total enrollment of 51,853 students (undergraduate, graduate, professional, and non-degree included); Duluth reported 11,491; Crookston had 2,764; Morris had 1,896; and Rochester had 414, bringing the system-wide total to 68,418 for fall semester 2012. The colors of the university, which are