The bodies of 55 of the 67 victims killed when a plane and helicopter crashed near Reagan National Airport have been recovered from the Potomac River ... divers have to map out the locations ...

Georgetown University partners with D.C. and NPS to expand Potomac River waterfront access and build a new boathouse.

Explore the nation’s history through an aerial trip along the Potomac River. Beginning in West Virginia ... TO BE CERTAIN OF ITS STRATEGIC LOCATION. DURING THE AMERICAN REVOLUTION, FORT ...

River herring and striped bass have dramatically declined in the Potomac, he noted. He is also examining how long-lasting, polyfluoroalkyl substances (PFAS) affect fish, and has found PFAS in two ...