The Chesapeake Bay Watershed
Channel: NASAEarthObservatory
Date: 2016-11-30

The Chesapeake Bay is the largest estuary in the United States and third largest in the world. Once sculpted and changed by ice, water, and powerful geologic forces over tens of millions of years, today's Bay is shaped by human forces as well. Read more at http://earthobservatory.nasa.gov/Features/Chesapeake/