Tags: Canal.
The Saint Lawrence Seaway (French: la Voie Maritime du Saint-Laurent) is the common name for a system of locks canals and channels that permits ocean-going vessels to travel from the Atlantic Ocean to the Great Lakes as far inland as the western end of Lake Superior. The Seaway is named for the Saint Lawrence River which flows from Lake Ontario to the Atlantic Ocean. Legally the Seaway extends from Montreal Quebec to Lake Erie and includes the Welland Canal.