Stunning new map shows every river basin and its tributaries in the U.S.

One of the bread and butter issues that many environmental professionals deal with are spills into the navigable waterways of the United States. 

A new map that shows every river basin in the United States,and its tributaries, may cause many sleepless nights for those professionals who must determine whether a spill of hazardous material has impacted a navigable waterway, whose definition is not what the layperson may think it is.

See it for yourself at this link: U.S. River Basin Map