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At the Confluence: Rivers, Floods, and Water Quality in the St.Louis Region


The St. Louis region surrounds the confluence of three mighty rivers: the Illinois, Missouri, and Mississippi. The region has great rivers and broad floodplains. St. Louis is also at the northeastern edge of the Ozark bioregion, which is known for its crystal clear, spring-fed streams, a region that helps give Missouri the distinction as the state with the most miles of rivers. (Read more in the flyer).

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Illinois State Water Survey

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