OntarioQuebecNew York- St. Lawrence River (Wikipedia)
The St. Lawrence River (French: Fleuve Saint-Laurent [flœv sɛ̃lɔʁɑ̃]) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawrence, traversing Ontario and Quebec in [Canada](Canada and New York in the United States. A section of the river demarcates the Canada–U.S. border.