Maryland will treat the Potomac River near Harpers Ferry with larvicide to reduce black flies. The water may discolor but ...

Naval Surface Warfare Center Dahlgren Division has issued the weekly schedule for operations at the Potomac River Test Range ...

It will continue to get harder to ensure there’s enough drinking water from the Potomac River, according to a group that ...

The Potomac watershed, which includes 14,670 miles of land that drains to the river, covers parts of West Virginia, Pennsylvania, the District, Maryland and Virginia.

The Potomac River Basin or watershed covers 14,670 square miles through five geological provinces. The river flows over 400 miles spanning Washington, D. C. and four states -- Virginia, Maryland ...

The Potomac River is in the middle of a comeback and is much cleaner than it used to be. There’s been great progress to clean up the “Nation’s River,” but pollution remains a problem.

After years of unchecked sewage flowing into the Potomac River, President Lyndon B. Johnson called the river “a national disgrace” in 1965. Although efforts to clean up the river have improved the ...

Part of the helicopter that was recovered from the Potomac River in 2005.© Gerald Herbert/AP Godfrey hugs 2-year-old daughter, Logan, following the crash.© Bill O'Leary/The Washington Post ...

Surfers and kayakers, with the Key Bridge in the background, take on the Potomac River along the banks of Washington in 2004. The city is considering lifting a ban on swimming in the river.

Potomac River fishing guide Steve Chaconas, who often practices catch-and-release fishing, was surprised by the river’s ranking as the most endangered. “I don’t see it as being that bad ...

The Potomac River, even in Washington, D.C., was nothing to be proud of, he said. "It stunk. Tere were algae blooms, and it was awful. And that was in our nation's capital," he said.

September 23, 2019 More than 5 years ago A boat and a double kayak head into the Potomac River at Riley's Lock leaving Seneca Creek on July 14, 2019. (Michael S. Williamson/The Washington Post) ...