<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="h12" name="Texas-Gulf" parent="hroot" scope="hydrologic region"/><bt><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><nt><term thcode="1" code="h1205" name="Brazos headwaters" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1210" name="Central Texas Coastal" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1204" name="Galveston Bay-San Jacinto" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1207" name="Lower Brazos" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1209" name="Lower Colorado-San Bernard Coastal" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1206" name="Middle Brazos" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1202" name="Neches" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1211" name="Nueces-Southwestern Texas Coastal" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1201" name="Sabine" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1203" name="Trinity" parent="h12" scope="hydrologic subregion"/><term thcode="1" code="h1208" name="Upper Colorado" parent="h12" scope="hydrologic subregion"/></nt><rt><term thcode="1" code="q33100" name="Abilene" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32094" name="Alexandria" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q31098" name="Austin" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q29096" name="Bay City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q31096" name="Beaumont" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q29098" name="Beeville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q33102" name="Big Spring" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q34104" name="Brownfield" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q27098" name="Brownsville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32100" name="Brownwood" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q35104" name="Clovis" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q28098" name="Corpus Christi" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q29100" name="Crystal City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q33098" name="Dallas" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q30102" name="Del Rio" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q29102" name="Eagle Pass" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q33104" name="Hobbs" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q30096" name="Houston" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q31094" name="Lake Charles" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q28100" name="Laredo" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q31100" name="Llano" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q34102" name="Lubbock" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q27100" name="Mcallen" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32096" name="Palestine" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32104" name="Pecos" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q35102" name="Plainview" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q30094" name="Port Arthur" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32102" name="San Angelo" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q30100" name="San Antonio" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q30098" name="Seguin" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q34098" name="Sherman" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q33094" name="Shreveport" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q31102" name="Sonora" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q34096" name="Texarkana" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q33096" name="Tyler" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q32098" name="Waco" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q34100" name="Wichita Falls" parent="qroot" scope="quadrangle 1:250,000 scale"/></rt></descriptor>