{"thcode":3,"term":{"code":614,"name":"ledges","parent":816,"scope":"Narrow shelves or projections of rock formed on a rock wall or cliff face. [Glossary of Geology, 4th ed.]"},"uf":[{"name":"benches (natural)","usewith":false}],"bt":[{"code":816,"name":"physiographic features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":211,"name":"cliffs","parent":816,"scope":"High vertical, near-vertical, or overhanging faces of rock, earth, or ice. [USGS Circ. 1048]"}]}