<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="f24017" name="Charles" parent="fUS24" scope="county"/><bt><term thcode="1" code="fUS24" name="Maryland" parent="fUS" scope="state"/><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="q39078NEC4" name="Benedict" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><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="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="q39078SW" name="Fredericksburg" parent="q39078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q39078NEB4" name="Hughesville" parent="q39078NE" 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="q39078SWG2" name="King George" parent="q39078SW" 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="q39078SE" name="Leonardtown" parent="q39078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="h02070011" name="Lower Potomac" parent="h020700" scope="hydrologic unit"/><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="h02070010" name="Middle Potomac-Anacostia-Occoquan" parent="h020700" scope="hydrologic unit"/><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="p2140" name="Naval Surface Warfare Center, Indian Head Division" parent="p24" scope="Navy"/><term thcode="1" code="h02060006" name="Patuxent" parent="h020600" scope="hydrologic unit"/><term thcode="1" code="q39078NEA3" name="Piscataway" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1128" name="Piscataway Park" parent="p56" scope="National Capital Park"/><term thcode="1" code="q39078SEA1" name="Popes Creek" parent="q39078SE" 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="q39078NWF4" name="Quantico" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEB2" name="Rock Point" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NE" name="Washington East" parent="q39078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q39078NW" name="Washington West" parent="q39078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q39078SWF1" name="Widewater" parent="q39078SW" scope="quadrangle 1:24,000 scale"/></rt></descriptor>