The Saint Lawrence River flows through which of these countries?

The Saint Lawrence River is a large river in the middle latitudes of North America. The Saint Lawrence River flows in a roughly north-easterly direction, connecting the Great Lakes with the Atlantic Ocean and forming the primary drainage outflow of the Great Lakes Basin. It traverses the Canadian provinces of Quebec and Ontario, and is part of the international boundary between Ontario, Canada, and the U.S. state of New York.

The Saint Lawrence River was an important source of whales for the Bosques who settled at the St. Lawrence Gulf in the late 16th century. The Bosque whalers traded with the indigenous Americans and built settlements along the Canadian coast and into the river valley. In the 17th century, the river was the main waterway for European exploration of the interior of North America which was first pioneered by Samuel de Champlain, a French explorer. The control of Saint Lawrence River was significant for the British strategy to take control of New France during the Seven Years’ War.

The shore of the Saint Lawrence River is home to over 80% of Quebec population. About 50% of the Quebec population depends on the water from the watercourses for their domestic use. The river was a French territory in the 17th and 18th century serving as the main transportation route. Today, the Saint Lawrence River valley is one of the most populated areas of Canada accounting for over 20% of the Canadian population. Montreal and Quebec City lie north of the river bank.