St. Clair River

city in Michigan, United States

Sarnia is a city in Lambton County, Ontario, Canada. It had a 2021 population of 72,047, and is the largest city on Lake Huron. Sarnia is located on the eastern bank of the junction between the Upper and Lower Great Lakes, where Lake Huron flows into the St. Clair River in the Southwestern Ontario region, which forms the Canada–United States border, directly across from Port Huron, Michigan.

lake bordering Ontario, Canada and Michigan, US

river in North America on the boundary of Michigan and Ontario

county in Ontario, Canada

bridge across the St. Clair River, connecting Port Huron, Michigan and Sarnia, Ontario

tributary of the St. Clair River in Michigan, United States