<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="a410" name="Silurian-Devonian aquifers" parent="aroot" scope="aquifer"/><bt><term thcode="1" code="aroot" name="US Aquifers" parent="fUS" scope="Aquifers of the 48 conterminous United States, Hawaii, Puerto Ri"/><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="q46084" name="Alpena" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42090" name="Aurora" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q47084" name="Blind River" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q36090" name="Blytheville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="ar400" name="Carbonate-rock aquifers" parent="art" scope="aquifer rock type"/><term thcode="1" code="p1674" name="Cedar Point National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="q46086" name="Cheboygan" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42088" name="Chicago" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q40086" name="Cincinnati" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="p1684" name="Clarence Cannon National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="q36088" name="Columbia" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q40084" name="Columbus" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q37086" name="Corbin" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="p1178" name="Daniel Boone National Forest" parent="p12" scope="National Forest"/><term thcode="1" code="q41088" name="Danville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42092" name="Davenport" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q40090" name="Decatur" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42094" name="Des Moines" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43084" name="Detroit" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43092" name="Dubuque" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q37090" name="Dyersburg" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q46088" name="Escanaba" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q44096" name="Fairmont" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42086" name="Fort Wayne" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q45090" name="Green Bay" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="p1200" name="Hiawatha National Forest" parent="p12" scope="National Forest"/><term thcode="1" code="q39084" name="Huntington" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS17" name="Illinois" parent="fUS" scope="state"/><term thcode="1" code="fUS18" name="Indiana" parent="fUS" scope="state"/><term thcode="1" code="q40088" name="Indianapolis" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS19" name="Iowa" parent="fUS" scope="state"/><term thcode="1" code="q38084" name="Jenkins" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS21" name="Kentucky" parent="fUS" scope="state"/><term thcode="1" code="q44092" name="La Crosse" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q39086" name="Louisville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q44090" name="Madison" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q45088" name="Manitowoc" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q41084" name="Marion" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q47088" name="Marquette" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q44094" name="Mason City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS26" name="Michigan" parent="fUS" scope="state"/><term thcode="1" code="p1858" name="Michigan Islands National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="p1224" name="Midewin National Tallgrass Prairie" parent="p12" scope="National Forest"/><term thcode="1" code="q44088" name="Milwaukee" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS29" name="Missouri" parent="fUS" scope="state"/><term thcode="1" code="q41086" name="Muncie" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q37088" name="Nashville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS39" name="Ohio" parent="fUS" scope="state"/><term thcode="1" code="p1892" name="Ottawa National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="q41090" name="Peoria" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q40092" name="Quincy" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43088" name="Racine" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43090" name="Rockford" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q47086" name="Sault Sainte Marie" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q39092" name="St Louis" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS47" name="Tennessee" parent="fUS" scope="state"/><term thcode="1" code="p2006" name="Tennessee National Wildlife Refuge" parent="p13" scope="National Wildlife Refuge"/><term thcode="1" code="q42084" name="Toledo" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q45086" name="Traverse City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43094" name="Waterloo" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q38086" name="Winchester" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="fUS55" name="Wisconsin" parent="fUS" scope="state"/></rt></descriptor>