<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="f24031" name="Montgomery" 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="q40078SE" name="Baltimore" parent="q40078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q40078SEA4" name="Beltsville" parent="q40078SE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWE2" name="Buckeystown" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1324" name="Chesapeake and Ohio Canal National Historical Park" parent="p39" scope="National Historic Park"/><term thcode="1" code="q40078SEA3" name="Clarksville" parent="q40078SE" 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="q39078NWG1" name="Falls Church" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SW" name="Frederick" parent="q40078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q40078SWG3" name="Gaithersburg" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1511" name="George Washington Memorial Parkway" parent="p45" scope="National Parkway"/><term thcode="1" code="q40078SWF3" name="Germantown" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWH4" name="Kensington" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWD4" name="Leesburg" parent="q40078SW" 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="h02070008" name="Middle Potomac-Catoctin" parent="h020700" scope="hydrologic unit"/><term thcode="1" code="h02070009" name="Monocacy" parent="h020700" scope="hydrologic unit"/><term thcode="1" code="p843" name="National Bureau of Standards" parent="p61" scope="General Services Administration"/><term thcode="1" code="p844" name="National Institutes of Health Animal Farm" parent="p61" scope="General Services Administration"/><term thcode="1" code="h02060006" name="Patuxent" parent="h020600" scope="hydrologic unit"/><term thcode="1" code="q40078SWE3" name="Poolesville" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p1130" name="Rock Creek Park" parent="p56" scope="National Capital Park"/><term thcode="1" code="q40078SWG4" name="Rockville" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWH3" name="Sandy Spring" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWF4" name="Seneca" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWE4" name="Sterling" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="p2191" name="U.S. Naval Surface Weapons Center" parent="p24" scope="Navy"/><term thcode="1" code="q40078SWF2" name="Urbana" parent="q40078SW" 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="q39078NEA1" name="Washington East" parent="q39078NE" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q39078NW" name="Washington West" parent="q39078" scope="quadrangle 1:100,000 scale"/><term thcode="1" code="q39078NWH1" name="Washington West" parent="q39078NW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWD3" name="Waterford" parent="q40078SW" scope="quadrangle 1:24,000 scale"/><term thcode="1" code="q40078SWH2" name="Woodbine" parent="q40078SW" scope="quadrangle 1:24,000 scale"/></rt></descriptor>