How big is Lake Michigan?


Quick Answer

Lake Michigan measures 307 miles in length and is 118 miles wide. At the surface, the water of the lake covers approximately 22,300 square miles and is ringed by a shoreline that measures 1,638 miles in length. The lake's average depth is approximately 279 feet.

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Full Answer

Lake Michigan is one of the Great Lakes in the North American continent and is connected through the Straits of Mackinac with Lake Huron. The speed of the water flowing between the two lakes allows the water of Lake Michigan to completely refresh itself approximately every 100 years. The lake is found at an elevation level of 577 feet.

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