"North America's largest estuary, the Chesapeake Bay, is fed by more than 150 major rivers and streams from parts of six states and the District of Columbia. Two hundred miles long, with a shoreline that includes more than 11,500 miles of tributaries, the bay has been a major economic lifeline since pre-Columbian times. As such, it is not surprising that the bay has seen its share of shipwrecks over the centuries-from small and large vessels foundering...