{"thcode":1,"term":{"code":"p1888","name":"Occoquan Bay National Wildlife Refuge","parent":"p13","scope":"National Wildlife Refuge"},"uf":[],"bt":[{"code":"p13","name":"National Wildlife Refuge FWS","parent":"pFWS","scope":"Type of land area"},{"code":"pFWS","name":"FWS","parent":"proot","scope":"Federal land areas administered by FWS"},{"code":"proot","name":"Federal lands","parent":"fUS","scope":"Land areas administered by US Federal agencies"},{"code":"fUS","name":"United States","parent":"fLD10","scope":"country"},{"code":"fLD10","name":"North America","parent":"fLD","scope":"continent"},{"code":"fLD","name":"Land","parent":"root","scope":"continent"},{"code":"root","name":"Earth","parent":null,"scope":"Common geographic areas focused on the US"}],"nt":[],"rt":[{"code":"q39078NWG3","name":"Fort Belvoir","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"h02070010","name":"Middle Potomac-Anacostia-Occoquan","parent":"h020700","scope":"hydrologic unit"},{"code":"a205","name":"Northern Atlantic Coastal Plain aquifer system","parent":"aroot","scope":"aquifer"},{"code":"a611","name":"Piedmont and Blue Ridge crystalline-rock aquifers","parent":"aroot","scope":"aquifer"},{"code":"f51153","name":"Prince William","parent":"fUS51","scope":"county"}]}