WILLIAMSPORT, Md. (DC News Now) — Keep your pets’ paws out of the Potomac River because algae mats were found in the Williamsport to Riley Lock area. The Maryland Departments of Agriculture ...

WILLIAMSPORT, Md. — The Maryland Departments of Agriculture, Environment, Health, and Natural Resources have one message for pet owners after algae mats were found in the Potomac River ...

On March 18, 1936, The Morning Herald announced startling news to its readers – the Potomac River was rising over a foot an hour in Williamsport. By the day’s end, the buildings at Cushwa ...

Two barges from a National Park Service project in Washington County broke loose from their moorings in the Potomac River ... Hanson said. The river at Dam No. 5 at Williamsport, north of where ...