St. Clair River

Saint Clair River
Sentinel-2 satellite photo, showing Lake Saint Clair (center), as well as St. Clair River connecting it to Lake Huron (to the North) and Detroit River connecting it to Lake Erie (to the South)
Location
Countries	Canada, United States
Physical characteristics
Source
• location	Lake Huron
Mouth
• location	Lake St. Clair
Length	40.5 mi (65.2 km)
Basin size	223,600 sq mi (579,000 km2)
Discharge
• average	182,000 cu ft/s (5,200 m3/s)

The St. Clair River is a 40.5-mile-long (65.2 km)^[1] river in central North America which flows from Lake Huron into Lake St. Clair, forming part of the international boundary between Canada and the United States and between the Canadian province of Ontario and the U.S. state of Michigan. The river is a significant component in the Great Lakes Waterway, whose shipping channels permit cargo vessels to travel between the upper and lower Great Lakes.