Duluth Seaway Port Authority

21 April 2026
1 min

Located in Minnesota, USA at the westernmost tip of Lake Superior, the Port of Duluth-Superior is North America’s farthest-inland freshwater seaport. A remarkable 14-kilometer natural breakwater shelters the port’s 79 kilometers of harbor frontage. Twenty privately owned bulk cargo docks and an award-winning general cargo terminal populate the working waterfront, along with a marine fueling depot, a shipyard with dry docks, multiple tug and barge services, plus an intermodal cargo terminal.

Duluth-Superior is a diversified multimodal shipping hub, offering global cargo transport through the Great Lakes-St. Lawrence Seaway, free-flowing major highways and direct Class I rail service to the East, West and Gulf Coast of North America.