There are 18 National Parks in Maryland as well as an additional 10 affiliated sites that partner with the National Park ...

(AP) — Police boats combed the banks of the Potomac River on Friday ... wind and current into a pair of shallow coves along the Maryland shore. The wreckage included pages from a flight manual ...

Dean Naujoks, who routinely patrols the Potomac for the environmental group Waterkeeper Alliance, found floating debris Thursday in a pair of shallow coves along the Maryland shore. The wreckage ...

At least 28 bodies were pulled from the icy waters of the Potomac River after the helicopter apparently flew into the path of the American Airlines regional jet late Wednesday while it was landing ...

At least 67 people are believed to have died on Wednesday night when an incoming flight collided with a military helicopter above the Potomac River near Washington D.C.'s Reagan National Airport.

In seconds, the wreckage of each aircraft plunged into the icy Potomac River ... Joint Base Anacostia-Bolling, the Maryland and Virginia state police, the Maryland Transportation Authority.

WASHINGTON (Reuters) -A small aircraft crashed in the Potomac River near Ronald Reagan Washington National Airport late Wednesday, and fire boats were on the scene, the Washington fire department said ...

In light of the crash, Metro has extended its Silver Line service from Dulles International Airport to Metro Center ... Maryland State Police divers are on the scene to help search the Potomac ...