{"thcode":3,"term":{"code":827,"name":"plains","parent":816,"scope":"Regions of general uniform slope, comparatively level and of considerable extent. [USGS Circ 1048]"},"uf":[{"name":"interfluves","usewith":false},{"name":"llanos","usewith":false}],"bt":[{"code":816,"name":"physiographic features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":399,"name":"flats","parent":816,"scope":"Relatively level areas within regions of greater relief. [USGS GNIS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":668,"name":"mesas","parent":816,"scope":"Very broad, flat-topped, usually isolated hills or mountains of moderate height bounded on at least one side by a steep cliff or slope and representing an erosion remnant. [Glossary of Geology, 4th ed.]"},{"code":832,"name":"plateaus","parent":816,"scope":"Comparatively flat areas of great extent and elevation; specif. extensive land regions considerably above the adjacent country or above sea level; commonly limited on at least one side by an abrupt descent, have flat or nearly smooth surfaces but are often dissected by deep valleys and surmounted by high hills or mountains, and have a large part of their total surface at or near the summit level. [Glossary of Geology, 4th ed.]"}]}