{"id":10159,"date":"2023-11-30T20:50:22","date_gmt":"2023-11-30T19:50:22","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=10159"},"modified":"2023-11-30T20:50:22","modified_gmt":"2023-11-30T19:50:22","slug":"does-mississippi-river-connect-to-great-lakes","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/does-mississippi-river-connect-to-great-lakes\/","title":{"rendered":"Does Mississippi River Connect To Great Lakes"},"content":{"rendered":"
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Background Information<\/h2>\n

The great lakes are some of the largest bodies of fresh water on Earth. They’re comprised of five lakes – Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario – and drain into the St. Lawrence River. The great lakes were formed during the Ice Age, some 12,500 years ago.
\nThe Mississippi River, meanwhile, is the fourth largest river in the world, stretching some 2,350 miles across the central United States. The Mississippi begins in Lake Itasca, Minnesota, and passes through 10 states before emptying into the Gulf of Mexico.
\nAlthough they are both major rivers in the United States, the Mississippi River and the Great Lakes are in two different watersheds. The Mississippi River is part of the Gulf of Mexico watershed, while the Great Lakes are part of the Atlantic Ocean watershed. As such, the Mississippi does not connect to the Great Lakes.<\/p>\n

How the Great Lakes and Mississippi River Separate<\/h2>\n

The Great Lakes and the Mississippi River are both located in the United States, but they are divided by the continental divide. The continental divide is a ridge of land that runs from the south-west of Canada, south-east through the US, and ends in the central Gulf of Mexico.
\nThe continental divide divides the surfaces of the North American continent by separating the waters that flow into the Pacific Ocean from the waters that drain in to the Atlantic Ocean. This means that the waters that flow into the Mississippi River must flow towards the Gulf of Mexico and not the Great Lakes.<\/p>\n

The Geographical Divide Boundary<\/h2>\n

The continental divide also serves as a physical boundary between the Great Lakes and the Mississippi Basin. This boundary forms the divide between the Mississippi River watershed and the Great Lakes watershed. The two watersheds are completely separate and run in opposite directions.
\nThe Mississippi River flows south and enters the Gulf of Mexico, while the Great Lakes flow north and empty into the St. Lawrence River which empties into the Atlantic Ocean. This boundary has been a natural barrier for many years, preventing the waters of the two watersheds from mixing.<\/p>\n

Man-Made Structures<\/h2>\n

The division between the Mississippi River and the Great Lakes has been reinforced by man-made structures. For example, the Chicago Sanitary and Ship Canal was built in 1900 to divert water from the Great Lakes to the Mississippi Basin. The canal runs from Lake Michigan to the Illinois River, which then flows into the Mississippi.
\nAlthough the canal does transfer water from one watershed to the other, there is a series of locks and dams that separate the waters. This stops the great lakes water from entering the Mississippi River, thus maintaining the division between the two watersheds.<\/p>\n

Economic Dependencies of the Great Lakes and Mississippi Rivers<\/h2>\n