{"id":9426,"date":"2023-10-17T06:10:15","date_gmt":"2023-10-17T05:10:15","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=9426"},"modified":"2023-10-17T06:10:15","modified_gmt":"2023-10-17T05:10:15","slug":"how-big-is-the-mississippi-river-drainage-basin","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/how-big-is-the-mississippi-river-drainage-basin\/","title":{"rendered":"How Big Is The Mississippi River Drainage Basin"},"content":{"rendered":"
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The Mississippi River drainage basin is the fourth largest in the world, after the Amazon, Congo, and Nile. Covering over 1.2 million square miles, the basin is basically a funnel shaped area shaped by tributaries. It stretches east from the Mississippi River Valley, across the Great Plains and the rocky mountains, into Wisconsin and the Canadian border. Within the drainage basin is the Upper Mississippi Basin, the Lower Mississippi Basin, and the Gulf of Mexico.<\/p>\n

The Upper Mississippi Basin is the furthest upstream and encompasses everything upstream starting at the headwaters near Lake Itasca in Minnesota and ending just downriver of St. Louis, Missouri. This basin includes portions of ten states and two Canadian provinces. The Upper Mississippi Basin is rich with biodiversity and is home to hundreds of species of fish, plants, and animals. In terms of water supply, the Upper Mississippi contributes around 45-50% of the water into the Mainstream Mississippi. <\/p>\n

The Lower Mississippi Basin is the middle portion of the drainage basin and is found just below St. Louis, Missouri. This area is also home to rich biodiversity and encompasses much of the lower Midwest of the United States, including parts of Missouri, Illinois, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. Within this area is the vast sensitive wetlands of the Mississippi river delta, which is home to a wide range of habitats, species, and resources. <\/p>\n

The Gulf of Mexico serves as the outlet for the main stream Mississippi River. Here, the waters from the Upper and Lower Mississippi basins widen and merge into the Gulf of Mexico; this part of the river is some of the most muddy and treacherous parts of the river with over 6,000 miles of productive coastline. This part of the basin sees much of the same species and habitats, but also has different kinds of ecosystems including coral reefs, estuaries, mangroves, and canals. <\/p>\n