St. Lawrence Seaway
The St. Lawrence Seaway—completed the same year as this map of the project, 1959—is jointly managed by Canada and the U.S. It is a series of canals and locks that opens the Great Lakes to ocean-going vessels.
Map by U.S. Navy
goods carried by a ship, plane, or other vehicle.
activities to celebrate or commemorate an event.
to remove sand, silt, or other material from the bottom of a body of water.
largest freshwater bodies in the world, located in the United States and Canada. Lake Huron, Lake Ontario, Lake Michigan, Lake Erie, and Lake Superior make up the Great Lakes.
structure on a waterway where gates at each end allow the water level to raise and lower as they are opened and closed.
place on a body of water where ships can tie up or dock and load and unload cargo.
path or way.
buying, selling, or exchanging of goods and services.
movement of many things, often vehicles, in a specific area.