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Lawrence Seaway and, thus, handles international commerce. Lake Michigan is part of the Great Lakes– St. Where will you find a polynya? On what body of water did the ancient city of Troy lie? Sort out the facts and discover where some of the longest, shortest, and hottest bodies of water lie. The northern end of the lake contains all of the islands, the largest of which is Beaver Island, Michigan. The Chicago River flowed into the southwestern end of the lake but was reversed in 1900 so that it now drains through the Chicago Sanitary and Ship Canal into the Des Plaines River at Joliet, Ill. The Fox and Menominee rivers flow into Green Bay, a northwestern arm of the lake. Joseph rivers enter the lake from the east.

The Manistee, Pere Marquette, White, Muskegon, Grand, Kalamazoo, and St. Approximately 100 streams flow into the lake, only a few of which are of appreciable size. Currents are slight, with a generally southward drift along the western side, a northward drift along the eastern side, and at times counterclockwise swirls in the southern basin and around the Beaver Island group in the north. With a mean surface elevation of 579 feet (176 m) above sea level, the lake has a maximum depth of 923 feet (281 m). The lake is 321 miles (517 km) long (north to south) it has a maximum width of 118 miles (190 km) and a drainage basin of about 45,500 square miles (118,000 square km), exclusive of its surface area, which is 22,300 square miles (57,757 square km). Bordered by the states of Michigan (east and north), Wisconsin (west), Illinois (southwest), and Indiana (southeast), it connects with Lake Huron through the Straits of Mackinac in the north. Lake Michigan, third largest of the five Great Lakes of North America and the only one lying wholly within the United States.

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