Potomac

Case study

Potomac River Basin

Thelin and Pike 1991, USGS Map I-2206

Potomac Basin - 1905

Rivers of North America: A Reading Lesson for Students of Geography and Geology, by Israel C. Russell, New York, G.P.Putnam’s Sons London, John Murray 1905

Hancock, Washington County, MD

Map – Microsoft MapPoint

Westernport MD

Map – Microsoft MapPoint

Alexandria VA

Map – Microsoft MapPoint

Loudoun County VA

Map – Microsoft MapPoint

Shenandoah and Rockingham Counties VA

Map – Microsoft MapPoint

Prince Williams County VA

Map – Microsoft MapPoint

http://www.potomacriver.org/

http://www.fergusonfoundation.org/cleanupfacts.html

Watershed photo

Scarps (Issues map)

Bay Crater

Subsidence

Rivers - Crater

Low Sea Level