what does watershed  mean
A watershed is an area of land that drains into a particular river, lake or other body of water. Watersheds are sometimes called âbasinsâ or âdrainage basins.â. We all live in a watershed. Some watersheds, like that of a stream or creek, are small. Others, like the Chesapeake Bay watershed, are large. We asked people in Alexandria, Virginia, to share their definition of a watershed. Find out what they said in the video below.