About
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Meet Our Team
Responsible for the construction, operation, and maintenance of the part of the St. Lawrence Seaway between Montreal and Lake Erie that falls within the territorial limits of the United States, the mission of the GLS is fulfilled at its policy headquarters in Washington, D.C. and its...
The Great Lakes-St. Lawrence Seaway System
The Great Lakes-St. Lawrence Seaway is a deep draft waterway extending 3,700 km (2,340 miles) from the Atlantic Ocean to the head of the Great Lakes, in the heart of North America. The St. Lawrence Seaway portion of the System extends from Montreal to mid-Lake Erie. Ranked as one of the...
The St. Lawrence Seaway Management Corporation
Administration of the Great Lakes-St. Lawrence Seaway System is shared by the GLS and the St. Lawrence Seaway Management Corporation (SLSMC).
The SLSMC is a not-for-profit corporation responsible for the safe and efficient movement of marine traffic through the Canadian Seaway...
What does the GLS do?
The Great Lakes St. Lawrence Seaway Development Corporation (GLS) is a wholly owned government corporation created by statute May 13, 1954, to construct, operate, and maintain that part of the St. Lawrence Seaway between the Port of Montreal and Lake Erie, within the territorial limits of...