Contributor duluthaerial used a DJI Mavic Pro 2 to shoot this aerial of the port and harbor of Duluth, Minnesota. Located in the southwestern corner of Lake Superior, it's the world's largest freshwater port. The port's largest commodity is a form of processed iron ore known as taconite, which is produced in the nearby Mesabi Iron Range mines. The port also handles millions of tons of grain shipments. In the first decades of the 20th century, Duluth was the USA's busiest port measured by freight tonnage.