{"thcode":3,"term":{"code":167,"name":"canyons","parent":1197,"scope":"Relatively narrow, deep depressions with steep sides, the bottom of which generally has a continuous slope [NIMA GEONet Designation ... Definitions <http:\/\/164.214.2.59\/gns\/html\/desig.html>]"},"uf":[{"name":"barrancas","usewith":false},{"name":"chasms","usewith":false},{"name":"flumes (natural)","usewith":false},{"name":"gorges","usewith":false},{"name":"gulches","usewith":false},{"name":"quebradas","usewith":false},{"name":"ravines","usewith":false}],"bt":[{"code":1197,"name":"valleys","parent":816,"scope":"Low-lying land bordered by higher ground; especially elongate, relatively large gently sloping depressions of the Earth's surface, commonly situated between two mountains or between ranges of hills or mountains, and often containing a stream with an outlet. [Glossary of Geology, 4th ed.]"},{"code":816,"name":"physiographic features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":62,"name":"arroyos","parent":816,"scope":"Small deep flat-floored channels or gullies of an ephemeral stream or of an intermittent stream, usually with vertical or steeply cut banks. [Adapted from Glossary of Geology, 4th ed.]"},{"code":77,"name":"badlands","parent":816,"scope":"Areas characterized by a maze of very closely spaced, deep, narrow, steep-sided ravines, and sharp crests and pinnacles. [NIMA GEONet Designation ... Definitions <http:\/\/164.214.2.59\/gns\/html\/desig.html> ]"},{"code":211,"name":"cliffs","parent":816,"scope":"High vertical, near-vertical, or overhanging faces of rock, earth, or ice. [USGS Circ. 1048]"},{"code":1106,"name":"submarine canyons","parent":1010,"scope":"Steep-sided, V-profile valley often heading in the continental shelf running down the continental slope, having tributaries and resembling unglaciated, river-cut land canyons. [Glossary of Geology, 4th ed.]"}]}