Mississippi River Basin Alliance: The Mississippi River
About the River
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The Mighty Mississippi is over 2,350 miles in length; it is the world's second largest
drainage basin, encompassing 30 states and two provinces; and it is fifth in the world in
terms of water volume, discharging an average of 612,000 cubic feet per second into the
Gulf of Mexico. Indeed, the Mississippi River is the heart of the Midwest.