{"thcode":1,"term":{"code":"h02070010","name":"Middle Potomac-Anacostia-Occoquan","parent":"h020700","scope":"hydrologic unit"},"uf":[],"bt":[{"code":"h020700","name":"Potomac","parent":"h0207","scope":"hydrologic accounting unit"},{"code":"h0207","name":"Potomac","parent":"h02","scope":"hydrologic subregion"},{"code":"h02","name":"Mid Atlantic","parent":"hroot","scope":"hydrologic region"},{"code":"hroot","name":"US hydrologic units","parent":"fUS","scope":"hydrologic subregion"},{"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":"f51510","name":"Alexandria","parent":"fUS51","scope":"City"},{"code":"q39078NWH2","name":"Alexandria","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NEA2","name":"Anacostia","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"p81","name":"Andrews Air Force Base","parent":"p25","scope":"Air Force"},{"code":"q39078NWG2","name":"Annandale","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWD1","name":"Arcola","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"f51013","name":"Arlington","parent":"fUS51","scope":"county"},{"code":"p478","name":"Arlington National Cemetery","parent":"p23","scope":"Army"},{"code":"q40078SEA4","name":"Beltsville","parent":"q40078SE","scope":"quadrangle 1:24,000 scale"},{"code":"p92","name":"Bolling Air Force Base","parent":"p25","scope":"Air Force"},{"code":"q39078NEB3","name":"Brandywine","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWC3","name":"Catlett","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p825","name":"Central Intelligence Agency","parent":"p68","scope":"Central Intelligence Agency"},{"code":"f24017","name":"Charles","parent":"fUS24","scope":"county"},{"code":"p1324","name":"Chesapeake and Ohio Canal National Historical Park","parent":"p39","scope":"National Historic Park"},{"code":"q40078SEA3","name":"Clarksville","parent":"q40078SE","scope":"quadrangle 1:24,000 scale"},{"code":"p510","name":"Diamond Laboratories Military Reservation (Closed)","parent":"p23","scope":"Army"},{"code":"fUS11","name":"District of Columbia","parent":"fUS","scope":"state"},{"code":"f51059","name":"Fairfax","parent":"fUS51","scope":"county"},{"code":"f51600","name":"Fairfax","parent":"fUS51","scope":"City"},{"code":"q39078NWF2","name":"Fairfax","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"f51610","name":"Falls Church","parent":"fUS51","scope":"City"},{"code":"q39078NWG1","name":"Falls Church","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"f51061","name":"Fauquier","parent":"fUS51","scope":"county"},{"code":"p1724","name":"Featherstone National Wildlife Refuge","parent":"p13","scope":"National Wildlife Refuge"},{"code":"q39078NWG3","name":"Fort Belvoir","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p517","name":"Fort Belvoir Military Reservation","parent":"p23","scope":"Army"},{"code":"p1126","name":"Fort Washington Park","parent":"p56","scope":"National Capital Park"},{"code":"q39078NWD2","name":"Gainesville","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q40078SWG3","name":"Gaithersburg","parent":"q40078SW","scope":"quadrangle 1:24,000 scale"},{"code":"p1108","name":"Goddard Space Flight Center","parent":"p46","scope":"National Aeronautics and Space Administration"},{"code":"p1127","name":"Greenbelt Park","parent":"p56","scope":"National Capital Park"},{"code":"q39078NWE1","name":"Herndon","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWE3","name":"Independent Hill","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWG4","name":"Indian Head","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWE4","name":"Joplin","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q40078SWH4","name":"Kensington","parent":"q40078SW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NEB1","name":"Lanham","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"q40078SEB4","name":"Laurel","parent":"q40078SE","scope":"quadrangle 1:24,000 scale"},{"code":"f51107","name":"Loudoun","parent":"fUS51","scope":"county"},{"code":"f51683","name":"Manassas","parent":"fUS51","scope":"City"},{"code":"q39078NWE2","name":"Manassas","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1122","name":"Manassas National Battlefield Park","parent":"p60","scope":"National Battlefield Park"},{"code":"f51685","name":"Manassas Park","parent":"fUS51","scope":"City"},{"code":"q39078NWB2","name":"Marshall","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1846","name":"Mason Neck National Wildlife Refuge","parent":"p13","scope":"National Wildlife Refuge"},{"code":"q39078NWC1","name":"Middleburg","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWC4","name":"Midland","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"f24031","name":"Montgomery","parent":"fUS24","scope":"county"},{"code":"q39078NWH3","name":"Mount Vernon","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1367","name":"National Mall","parent":"p67","scope":"National Mall"},{"code":"p2136","name":"Naval Research Laboratory Washington","parent":"p24","scope":"Navy"},{"code":"p2138","name":"Naval Station Anacostia","parent":"p24","scope":"Navy"},{"code":"p2140","name":"Naval Surface Warfare Center, Indian Head Division","parent":"p24","scope":"Navy"},{"code":"q39078NWD3","name":"Nokesville","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWF3","name":"Occoquan","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1888","name":"Occoquan Bay National Wildlife Refuge","parent":"p13","scope":"National Wildlife Refuge"},{"code":"p1904","name":"Patuxent National Wildlife Refuge","parent":"p13","scope":"National Wildlife Refuge"},{"code":"p827","name":"Pentagon","parent":"p63","scope":"Department of Defense"},{"code":"q39078NEA3","name":"Piscataway","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"p1128","name":"Piscataway Park","parent":"p56","scope":"National Capital Park"},{"code":"q39078NWH4","name":"Port Tobacco","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"f24033","name":"Prince George's","parent":"fUS24","scope":"county"},{"code":"f51153","name":"Prince William","parent":"fUS51","scope":"county"},{"code":"q39078NWF4","name":"Quantico","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1100","name":"Quantico Marine Corps Base","parent":"p40","scope":"Marine Corps"},{"code":"q39078NWB1","name":"Rectortown","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWB4","name":"Remington","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p1130","name":"Rock Creek Park","parent":"p56","scope":"National Capital Park"},{"code":"q40078SWG4","name":"Rockville","parent":"q40078SW","scope":"quadrangle 1:24,000 scale"},{"code":"p1106","name":"Ronald Reagan Washington National Airport","parent":"p66","scope":"Metropolitan Washington Airports Authority"},{"code":"q40078SWH3","name":"Sandy Spring","parent":"q40078SW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWD4","name":"Somerville","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWC2","name":"Thoroughfare Gap","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p76","name":"U.S. Department of Agriculture Research Center","parent":"p53","scope":"Agricultural Research Service"},{"code":"p2187","name":"U.S. Naval Radio Receiving Station","parent":"p24","scope":"Navy"},{"code":"p2191","name":"U.S. Naval Surface Weapons Center","parent":"p24","scope":"Navy"},{"code":"q39078NEB2","name":"Upper Marlboro","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWF1","name":"Vienna","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p631","name":"Vint Hill Farms Station Military Reservation (Closed)","parent":"p23","scope":"Army"},{"code":"q39078NWB3","name":"Warrenton","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"},{"code":"p633","name":"Warrenton Training Center Military Reservation","parent":"p23","scope":"Army"},{"code":"p1107","name":"Washington Dulles International Airport","parent":"p66","scope":"Metropolitan Washington Airports Authority"},{"code":"q39078NEA1","name":"Washington East","parent":"q39078NE","scope":"quadrangle 1:24,000 scale"},{"code":"q39078NWH1","name":"Washington West","parent":"q39078NW","scope":"quadrangle 1:24,000 scale"}]}
