{"thcode":3,"term":{"code":331,"name":"drainage basins","parent":525,"scope":"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.]"},"uf":[{"name":"catchments","usewith":false},{"name":"headwaters","usewith":false},{"name":"watersheds","usewith":false}],"bt":[{"code":525,"name":"hydrographic features","parent":1,"scope":"For natural bodies of water. For constructed waterways, reservoirs, and such, use 'hydrographic structures'."},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":95,"name":"basins","parent":816,"scope":"Bowl-shaped, natural depressions in the surface of the land or ocean floor. [Adapted from USGS Circ 1048]"},{"code":401,"name":"floodplains","parent":525,"scope":"Flat or nearly flat land along a river or stream or in a tidal area that is covered by water during a flood. [EPA Terms of Environment <http:\/\/www.epa.gov\/OCEPAterms\/>]"},{"code":1096,"name":"streams","parent":525,"scope":"Linear bodies of water flowing on the Earth's surface. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"}]}