Tamanend bottlenose dolphins are seasonal visitors to the Chesapeake Bay and Potomac River. They are a coastal population of ...

It will continue to get harder to ensure there’s enough drinking water from the Potomac River, according to a group that coordinates with D.C.-area water companies.

A Spirit of Washington lunch cruise boat took on water in the Potomac River shortly after leaving the D.C.'s Wharf on a test ...

The George Washington Parkway is undertaking a new initiative to upgrade and replace several of its drinking fountains, ...

The National Transportation Safety Board released new details Wednesday about the final moments before a mid-air crash ...

Flight instruments probably led the Black Hawk crew to believe the helicopter was lower than it actually was before the ...

A body was found in the Potomac River in Washington, D.C.—the crash site of where an American Airlines flight and Sikorsky H-60 Black Hawk military helicopter collided on Wednesday night—with ...

It is the second of three days of witness testimony and public inquiry by the National Transportation Safety Board into ...

Photo / Petty Officer 1st Class Brandon Giles, US Coast Guard via ) Investigators painted a devastating picture today of ...

The army helicopter that crashed into a passenger jet over Washington DC was flying too high, investigators have concluded.