{"thcode":3,"term":{"code":960,"name":"rivers","parent":1096,"scope":"Natural freshwater surface streams of considerable volume and a permanent or seasonal flow, moving in a definite channel toward a sea, lake, or another river; any large streams, or ones larger than brooks or creeks, such as the trunk stream and larger branches of a drainage system.  [Glossary of Geology, 4th ed.]"},"uf":[{"name":"rios","usewith":false}],"bt":[{"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>]"},{"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":[{"code":109,"name":"bends (river)","parent":960,"scope":"Curves in the course of a stream and (or) the land within the curve; curves in a linear body of water. [USGS GNIS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":912,"name":"rapids","parent":960,"scope":"Fast-flowing sections of a stream, often shallow and with exposed rock or boulders. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":1229,"name":"waterfalls","parent":960,"scope":"Perpendicular or very steep falls of water in the course of a stream. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"}],"rt":[{"code":189,"name":"channels","parent":525,"scope":"(a) Relatively narrow seas or stretches of water between two close landmasses and connecting two larger bodies of water; (b) Deeper parts of a moving body of water (as bays, estuaries, or straits) through which the main current flows or which affords the best passage through an area otherwise too shallow to navigate. [Glossary of Geology, 4th ed.]"},{"code":476,"name":"guts","parent":525,"scope":"Relatively small coastal waterways connecting larger bodies of water or other waterways. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":1067,"name":"springs (hydrographic)","parent":1096,"scope":"Places where underground water flows naturally to the surface of the Earth. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"}]}