The Potomac River is now considered the most endangered river in the United States for 2012, reports American Rivers. Not only is the Potomac supposed to provide drinking water for over five ...

The United States Geological Survey (USGS) and Dewberry, a privately held professional services firm, have jointly released a new topobathymetric lidar dataset for the Potomac River, extending from ...

Data gathered about the bacteria levels in local river water have put several swimming and boating spots in the “safe” category on a national water safety registry. The Potomac RiverKeeper Network ...

James Keily’s 1851 map of ... before the Potomac River ... personal map collection currently contains more than 150,000 maps and is one of the largest private collections in the United States.