<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="fUS32" name="Nevada" parent="fUS" scope="state"/><bt><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="f32510" name="Carson City" parent="fUS32" scope="county"/><term thcode="1" code="f32001" name="Churchill" parent="fUS32" scope="county"/><term thcode="1" code="f32003" name="Clark" parent="fUS32" scope="county"/><term thcode="1" code="f32005" name="Douglas" parent="fUS32" scope="county"/><term thcode="1" code="f32007" name="Elko" parent="fUS32" scope="county"/><term thcode="1" code="f32009" name="Esmeralda" parent="fUS32" scope="county"/><term thcode="1" code="f32011" name="Eureka" parent="fUS32" scope="county"/><term thcode="1" code="f32013" name="Humboldt" parent="fUS32" scope="county"/><term thcode="1" code="f32015" name="Lander" parent="fUS32" scope="county"/><term thcode="1" code="f32017" name="Lincoln" parent="fUS32" scope="county"/><term thcode="1" code="f32019" name="Lyon" parent="fUS32" scope="county"/><term thcode="1" code="f32021" name="Mineral" parent="fUS32" scope="county"/><term thcode="1" code="f32023" name="Nye" parent="fUS32" scope="county"/><term thcode="1" code="f32027" name="Pershing" parent="fUS32" scope="county"/><term thcode="1" code="f32029" name="Storey" parent="fUS32" scope="county"/><term thcode="1" code="f32031" name="Washoe" parent="fUS32" scope="county"/><term thcode="1" code="f32033" name="White Pine" parent="fUS32" scope="county"/></nt><rt><term thcode="1" code="a101" name="Basin and Range basin-fill aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="a401" name="Basin and Range carbonate-rock aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="h1604" name="Black Rock Desert-Humboldt" parent="h16" scope="hydrologic subregion"/><term thcode="1" code="q38116" name="Caliente" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1605" name="Central Lahontan" parent="h16" scope="hydrologic subregion"/><term thcode="1" code="h1606" name="Central Nevada Desert Basins" parent="h16" scope="hydrologic subregion"/><term thcode="1" code="q40122" name="Chico" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q37118" name="Death Valley" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q41116" name="Elko" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q40116" name="Ely" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1603" name="Escalante Desert-Sevier Lake" parent="h16" scope="hydrologic subregion"/><term thcode="1" code="q38118" name="Goldfield" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1602" name="Great Salt Lake" parent="h16" scope="hydrologic subregion"/><term thcode="1" code="q43118" name="Jordan Valley" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q36116" name="Kingman" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q37116" name="Las Vegas" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q41120" name="Lovelock" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1503" name="Lower Colorado" parent="h15" scope="hydrologic subregion"/><term thcode="1" code="h1501" name="Lower Colorado-Lake Mead" parent="h15" scope="hydrologic subregion"/><term thcode="1" code="q39116" name="Lund" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q38120" name="Mariposa" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42118" name="Mcdermitt" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1705" name="Middle Snake" parent="h17" scope="hydrologic subregion"/><term thcode="1" code="q40118" name="Millett" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1808" name="North Lahontan" parent="h18" scope="hydrologic subregion"/><term thcode="1" code="h1809" name="Northern Mojave-Mono Lake" parent="h18" scope="hydrologic subregion"/><term thcode="1" code="h1712" name="Oregon closed basins" parent="h17" scope="hydrologic subregion"/><term thcode="1" code="a610" name="Pacific Northwest basaltic-rock aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="a104" name="Pacific Northwest basin-fill aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="q40120" name="Reno" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="a601" name="Southern Nevada volcanic-rock aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="q39118" name="Tonopah" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43116" name="Twin Falls" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1704" name="Upper Snake" parent="h17" scope="hydrologic subregion"/><term thcode="1" code="q42120" name="Vya" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q39120" name="Walker Lake" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42116" name="Wells" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q41118" name="Winnemucca" parent="qroot" scope="quadrangle 1:250,000 scale"/></rt></descriptor>