The Great Lakes-Seaway Marine Highway

For more than 200 years, ships have transported goods along the Great Lakes, their connecting channels and the St. Lawrence River. This marine highway extends 2,300 miles (3700 km) from the Atlantic Ocean into the North American heartland and supports the activities of more than 100 ports located in the eight Great Lakes states and the provinces of Ontario and Quebec.

The Great Lakes-Seaway shipping industry is critical to the economies of the United States and Canada. The waterway enables low-cost, sustainable and safe movement of freight for key industries such as mining, steelmaking, agriculture and energy.

We invite you to learn more about Great Lakes-Seaway shipping.