Alfred Downing created accurate sketches of the banks and riverbed of the Columbia River. In 1880, he created a reasonably accurate outline sketch of the Waterville Plateau. He ...

Officials announced Tuesday that the section of the Potomac River that was impacted by the DCA crash has been fully restored.

Crews have finished recovering the wreckage of a plane and helicopter that collided mid-air, killing 67 people.

The section of the Potomac River affected by the Jan. 29 midair collision of an American Airlines regional jet and a U.S.

Investigators searching for wreckage from last week’s deadly midair collision between a US military Black Hawk helicopter and an American Airlines plane near Washington, DC, conducted an overnight ...

Now that rescue crews have recovered the remains of all 67 people aboard the two aircraft that collided over the Potomac ...

But even before the National Transportation Safety Board completes its investigation—a neurotically thorough process that ...

Earlier on Friday, officials announced that they had sharply restricted access to the flight path along the Potomac River that the helicopter had been using before the collision. The corridor was ...

ARLINGTON, Va. (AP) — Police boats combed the banks of the Potomac River on Friday, slowly scanning the shoreline in the rain as investigators sought clues into the midair collision that killed ...