What major cities are located along or near by the st. Lawrence River

St. Lawrence River, is a grand river and estuary, which along with the Great Lakes makes up a hydrographic system that goes 3,058 km into North America.

This river flows through the mean latitudes of the continent. It originates in Lake Ontario together with Kingston and then crosses the cities of Brockville and Cornwall (in Ontario Province), Montreal, Trois-Rivières and Quebec.