US Army Corps of Engineers
St. Louis District

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Charts & Maps


Accurate geospatial information collected by the U.S. Army Corps of Engineers for waterway maintenance and flood control activities, is now available as Inland Electronic Navigation Charts (IENCs) for use in navigation systems and to support increased safety of navigation.

Upper Mississippi River Navigational Chart Book

Illinois River Navigational Chart Book

Additional Inland Navigational Chart Books

Inland Electronic Navigation Charts