<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="h02060006" name="Patuxent" parent="h020600" scope="hydrologic unit"/><bt><term thcode="1" code="h020600" name="Upper Chesapeake" parent="h0206" scope="hydrologic accounting unit"/><term thcode="1" code="h0206" name="Upper Chesapeake" 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="q39078NEA2" name="Anacostia" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p81" name="Andrews Air Force Base" parent="p25" scope="Air Force"/><term thcode="1" code="f24003" name="Anne Arundel" parent="fUS24" scope="county"/><term thcode="1" code="q40078SEA4" name="Beltsville" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEC4" name="Benedict" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEC1" name="Bowie" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEB3" name="Brandywine" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEC2" name="Bristol" 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="f24009" name="Calvert" parent="fUS24" scope="county"/><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="q40078SEA3" name="Clarksville" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078SEE1" name="Cove Point" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWG2" name="Damascus" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NED2" name="Deale" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SEB2" name="Ellicott City" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p532" name="Fort George G. Meade" parent="p23" scope="Army"/><term thcode="1" code="f24021" name="Frederick" parent="fUS24" scope="county"/><term thcode="1" code="q40078SWG3" name="Gaithersburg" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1108" name="Goddard Space Flight Center" parent="p46" scope="National Aeronautics and Space Administration"/><term thcode="1" code="q39078SED2" name="Hollywood" parent="q39078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24027" name="Howard" parent="fUS24" scope="county"/><term thcode="1" code="q39078NEB4" name="Hughesville" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEB1" name="Lanham" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SEB4" name="Laurel" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEC3" name="Lower Marlboro" parent="q39078NE" 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="f24031" name="Montgomery" parent="fUS24" scope="county"/><term thcode="1" code="p2125" name="Naval Academy Dairy Farm" parent="p24" scope="Navy"/><term thcode="1" code="p2126" name="Naval Air Station, Patuxent River" parent="p24" scope="Navy"/><term thcode="1" code="p2139" name="Naval Station Washington, Solomons Complex" parent="p24" scope="Navy"/><term thcode="1" code="q39078NED3" name="North Beach" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SEC4" name="Odenton" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1904" name="Patuxent National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="q39078NED4" name="Prince Frederick" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24033" name="Prince George's" parent="fUS24" scope="county"/><term thcode="1" code="q40078SEC3" name="Relay" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="f24037" name="Saint Mary's" parent="fUS24" scope="county"/><term thcode="1" code="q40078SWH3" name="Sandy Spring" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SEB3" name="Savage" parent="q40078SE" 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="q39078NED1" name="South River" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SEA2" name="Sykesville" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p207" name="U.S. Air Force Transmitter Station" parent="p25" scope="Air Force"/><term thcode="1" code="p76" name="U.S. Department of Agriculture Research Center" parent="p53" scope="Agricultural Research Service"/><term thcode="1" code="q39078NEB2" name="Upper Marlboro" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NEA1" name="Washington East" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWH2" name="Woodbine" parent="q40078SW" scope="quadrangle 1:24,000 scale"/></rt></descriptor>