The St. Lawrence River primarily flows in a northeastern direction. It starts at the outflow of Lake Ontario, moving eastward before turning to the north and finally discharging into the Gulf of St. Lawrence.
This river plays a crucial role in connecting the Great Lakes to the Atlantic Ocean, serving as a major shipping route. The flow can vary in different sections due to the topography and the lakes it connects. Understanding the flow of the St. Lawrence River is vital for navigation, ecology, and regional climate.