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.

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

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 ...

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

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 ...

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

The hearings revealed that the air traffic controller had been overwhelmed, the helicopter's altimeter was inaccurate and there had been previous concerns with the helicopter route.

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