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Learn about the history, characteristics, ecology and navigation of the Upper Mississippi River, from Lake Itasca to St. Louis. The river is a series of pools with 29 locks and dams, and provides habitat for many fish and wildlife species.
A dam and two locks on the Upper Mississippi River near Alton, Illinois and West Alton, Missouri. It is part of the nine-foot navigation project and named after Illinois Congressman Charles Melvin Price.
Upper Mississippi–Maquoketa–Plum Subregion: The Mississippi River Basin below the Root River Basin west of the Mississippi River and the La Crosse River Basin east of the Mississippi River to Lock and Dam 13, excluding the Wisconsin River Basin. Located in Illinois, Iowa, Minnesota, and Wisconsin. 8,610 sq mi (22,300 km 2) HUC0706: 0707
The Mississippi River is the second-longest river in the U.S., flowing from Lake Itasca in Minnesota to the Gulf of Mexico. It has a rich cultural and ecological significance, and was a major route for exploration and settlement in the 19th century.
Learn about the history and features of the lock and dam on the Upper Mississippi River near Keokuk, Iowa. The lock and dam obliterated the Des Moines Rapids, created a 142 MW powerhouse, and is listed in the National Register of Historic Places.
The Upper Mississippi River National Wildlife and Fish Refuge protects more than 240,000 acres of floodplain along the river from Wabasha, Minnesota, to Rock Island, Illinois, including much of ...
Learn about the lock and dam on the Upper Mississippi River near Winfield, Missouri, built in 1939 and listed in the National Register of Historic Places. Find out its dimensions, capacity, features, and history.
The Mississippi River System includes the Mississippi River and its tributaries and connecting waterways in the United States and Canada. The system drains about 41% of the U.S. and has major tributaries such as the Illinois, Missouri, Ohio and Red rivers.