Cahokia Map (IMAGE) University of Wisconsin-Madison Caption This is a modeled map of Cahokia and present-day St. Louis after the historic 1844 flood of the Mississippi River. Credit Samuel Munoz Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.