Sonar of Shipwreck (IMAGE) Virginia Institute of Marine Science Caption This is a digital sonar image of a newly discovered vessel on the floor of the York River immediately adjacent to histroric Yorktown, Virginia -- site of the 1781 Battle of Yorktown. Credit Image courtesy of David Niebuhr/VIMS. Usage Restrictions One-time use only. 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.