Where does stormwater go once it reaches a stream or river? Now find out without getting wet. Streamer is an online tool from the National Atlas of the United States announced July 17 by the U.S. Geological Survey (USGS). It is essentially a “road map” for waterways. With Streamer, users can follow the path of America’s major rivers and streams and gather current and historic streamflow data from thousands of locations. The tool enables users to determine miles traveled, waterbody outlet, and population within surrounding counties. Read more.