Pre-Columbian city of Cahokia (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption New studies offer insight into the people who lived, died and were buried in mass graves in the pre-Columbian city of Cahokia, near present-day St. Louis. Credit Image courtesy Cahokia Mounds State Historic Site, painting by William R. Iseminger. Usage Restrictions Image may be used ONLY to accompany stories about the research described in this release. Credit is required: Image courtesy Cahokia Mounds State Historic Site, painting by William R. Iseminger. Share Print E-Mail 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.