Regions or areas bounded by drainage divides and occupied by
drainage systems; specifically the tract of country that gathers
water originating as precipitation and contributes it to a
particular stream channel or system of channels, or to a lake,
reservoir, or other body of water. [Glossary of Geology, 4th
ed.] Description of studies conducted to evaluate the surface
water, ground water, water interactions, and water quality of
Methow River Basin in Washington. With links to related science
topics, datasets, maps, project summaries, and news. Primary
homepage for the National Water Quality Assessment (NAWQA)
Program studying water quality in river, aquifer and coastal
water basins throughout the nation. Links to reports, data,
models, maps and national synthesis studies. The Great and
Little Miami River Basins form a National Water Quality
Assessment (NAWQA) Program study unit for studying the status,
trends, and changes affecting the nation's water quality. Site
links to data, publications, maps, and result