<descriptor thcode="1"><thesaurus thcode="1" name="Common geographic areas" scope="Names and identifiers of commonly-known geographic areas including oceans, continents, countries, states and provinces in North America, counties in the United States, USGS map quadrangles, and hydrologic units, nested and cross-referenced by overlap." creator="U.S. Geological Survey" rights="Public domain" edition="1.0" date="2002-03-21" codetype="alpha" prefix="geo" uri="http://www.usgs.gov/science/CommonGeographicAreas" tblname="geo" nonpref="geonp" relterm="geort" root_code="root" contact="pschweitzer"><category><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="30" name="ambiguous labels" parent="26" scope="A given preferred label may be used for more than one concept in the thesaurus. A concept must be specified using its unique identifier (code). This may occur in the names of places or people."/><term thcode="25" code="4" name="place" parent="2" scope="Terms indicate extent in space, typically by reference as the names of geographic areas known from information that is stored elsewhere."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="30" name="ambiguous labels" parent="26" scope="A given preferred label may be used for more than one concept in the thesaurus. A concept must be specified using its unique identifier (code). This may occur in the names of places or people."/><term thcode="25" code="4" name="place" parent="2" scope="Terms indicate extent in space, typically by reference as the names of geographic areas known from information that is stored elsewhere."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/></category><altlabel><altlabel>Augmented FIPS 10-4 and FIPS 6-4</altlabel><altlabel>Augmented FIPS 10-4 and FIPS 6-4</altlabel><altlabel>CommonGeographicAreas</altlabel><altlabel>CommonGeographicAreas</altlabel></altlabel></thesaurus><term thcode="1" code="h02070011" name="Lower Potomac" parent="h020700" scope="hydrologic unit"/><bt><term thcode="1" code="h020700" name="Potomac" parent="h0207" scope="hydrologic accounting unit"/><term thcode="1" code="h0207" name="Potomac" parent="h02" scope="hydrologic subregion"/><term thcode="1" code="h02" name="Mid Atlantic" parent="hroot" scope="hydrologic region"/><term thcode="1" code="hroot" name="US hydrologic units" parent="fUS" scope="hydrologic subregion"/><term thcode="1" code="fUS" name="United States" parent="fLD10" scope="country"/><term thcode="1" code="fLD10" name="North America" parent="fLD" scope="continent"/><term thcode="1" code="fLD" name="Land" parent="root" scope="continent"/><term thcode="1" code="root" name="Earth" scope="Common geographic areas focused on the US"/></bt><rt><term thcode="1" code="p486" name="Blossom Point Field Test Facility" parent="p23" scope="Army"/><term thcode="1" code="q39078NEB3" name="Brandywine" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SED1" name="Broomes Island" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q38078NEF1" name="Burgess" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24017" name="Charles" parent="fUS24" scope="county"/><term thcode="1" code="q39078SEB1" name="Charlotte Hall" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEA2" name="Colonial Beach North" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEA3" name="Colonial Beach South" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWH2" name="Dahlgren" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q38078NEG2" name="East of Reedville" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f51061" name="Fauquier" parent="fUS51" scope="county"/><term thcode="1" code="q39078SWE2" name="Fredericksburg" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1423" name="George Washington Birthplace National Monument" parent="p28" scope="National Monument"/><term thcode="1" code="p571" name="Globecom Radio Receiving Station" parent="p23" scope="Army"/><term thcode="1" code="q38078NEC1" name="Haynesville" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q38078NEE1" name="Heathsville" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SED2" name="Hollywood" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEB4" name="Hughesville" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWE3" name="Independent Hill" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWG4" name="Indian Head" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWE4" name="Joplin" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f51099" name="King George" parent="fUS51" scope="county"/><term thcode="1" code="q39078SWG2" name="King George" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SED4" name="Kinsale" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEA4" name="La Plata" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEC2" name="Leonardtown" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q38078NED1" name="Lottsburg" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEC4" name="Machodoc" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWH1" name="Mathias Point" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEC1" name="Mechanicsville" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEB4" name="Montross" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWH3" name="Mount Vernon" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWG1" name="Nanjemoy" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p2126" name="Naval Air Station, Patuxent River" parent="p24" scope="Navy"/><term thcode="1" code="p2127" name="Naval Air Station, Patuxent River, Webster Field Annex" parent="p24" scope="Navy"/><term thcode="1" code="p2140" name="Naval Surface Warfare Center, Indian Head Division" parent="p24" scope="Navy"/><term thcode="1" code="f51133" name="Northumberland" parent="fUS51" scope="county"/><term thcode="1" code="q39078NWF3" name="Occoquan" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWF2" name="Passapatanzy" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SED3" name="Piney Point" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEA3" name="Piscataway" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEF4" name="Point Lookout" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEF3" name="Point No Point" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEA1" name="Popes Creek" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWG3" name="Port Royal" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWH4" name="Port Tobacco" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24033" name="Prince George's" parent="fUS24" scope="county"/><term thcode="1" code="f51153" name="Prince William" parent="fUS51" scope="county"/><term thcode="1" code="p1129" name="Prince William Forest Park" parent="p56" scope="National Capital Park"/><term thcode="1" code="q39078NWF4" name="Quantico" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1100" name="Quantico Marine Corps Base" parent="p40" scope="Marine Corps"/><term thcode="1" code="q38078NEF2" name="Reedville" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f51159" name="Richmond" parent="fUS51" scope="county"/><term thcode="1" code="q39078SEB2" name="Rock Point" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWH3" name="Rollins Fork" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEC3" name="Saint Clements Island" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEE4" name="Saint George Island" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24037" name="Saint Mary's" parent="fUS24" scope="county"/><term thcode="1" code="q39078SEE3" name="Saint Marys City" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWD2" name="Salem Church" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q38078NEG1" name="Smith Point" parent="q38078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEE2" name="Solomons Island" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NWD4" name="Somerville" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f51179" name="Stafford" parent="fUS51" scope="county"/><term thcode="1" code="q39078SWE1" name="Stafford" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SWD1" name="Storck" parent="q39078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEB3" name="Stratford Hall" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p2192" name="U.S. Naval Surface Weapons Center Dahlgren Lab" parent="p24" scope="Navy"/><term thcode="1" code="f51193" name="Westmoreland" parent="fUS51" scope="county"/><term thcode="1" code="q39078SWF1" name="Widewater" parent="q39078SW" scope="quadrangle 1:24,000 scale"/></rt></descriptor>