Great Lakes: Their Link with Ocean Shipping
Portrays the lakes as an important shipping route for a region of vast natural resources, major population centers and extensive industrial development. Shows the Welland Canal and the St. Lawrence Seaway as important links between the lakes and the ocean.
- Year: 1948
- Country: United States of America
- Genre: Documentary
- Studio: Encyclopædia Britannica Films
- Keyword: great lakes
- Director: Clifford J. Kamen
- Cast: James Matthews