More info: The Port of Duluth-Superior is located at the western end of the Great Lakes St. Lawrence Seaway and is the farthest-inland freshwater seaport and one of the leading bulk cargo ports in North America. It meets the transportation needs of a vast range of industries including agriculture, forestry, mining, construction and power generation as well passenger cruising.
There are 20 privately owned and operated docks along 49 miles of waterfront plus one general cargo terminal, a fuel depot, tug/barge services, and a shipyard with two dry docks.