<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="fUS19" name="Iowa" 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="f19001" name="Adair" parent="fUS19" scope="county"/><term thcode="1" code="f19003" name="Adams" parent="fUS19" scope="county"/><term thcode="1" code="f19005" name="Allamakee" parent="fUS19" scope="county"/><term thcode="1" code="f19007" name="Appanoose" parent="fUS19" scope="county"/><term thcode="1" code="f19009" name="Audubon" parent="fUS19" scope="county"/><term thcode="1" code="f19011" name="Benton" parent="fUS19" scope="county"/><term thcode="1" code="f19013" name="Black Hawk" parent="fUS19" scope="county"/><term thcode="1" code="f19015" name="Boone" parent="fUS19" scope="county"/><term thcode="1" code="f19017" name="Bremer" parent="fUS19" scope="county"/><term thcode="1" code="f19019" name="Buchanan" parent="fUS19" scope="county"/><term thcode="1" code="f19021" name="Buena Vista" parent="fUS19" scope="county"/><term thcode="1" code="f19023" name="Butler" parent="fUS19" scope="county"/><term thcode="1" code="f19025" name="Calhoun" parent="fUS19" scope="county"/><term thcode="1" code="f19027" name="Carroll" parent="fUS19" scope="county"/><term thcode="1" code="f19029" name="Cass" parent="fUS19" scope="county"/><term thcode="1" code="f19031" name="Cedar" parent="fUS19" scope="county"/><term thcode="1" code="f19033" name="Cerro Gordo" parent="fUS19" scope="county"/><term thcode="1" code="f19035" name="Cherokee" parent="fUS19" scope="county"/><term thcode="1" code="f19037" name="Chickasaw" parent="fUS19" scope="county"/><term thcode="1" code="f19039" name="Clarke" parent="fUS19" scope="county"/><term thcode="1" code="f19041" name="Clay" parent="fUS19" scope="county"/><term thcode="1" code="f19043" name="Clayton" parent="fUS19" scope="county"/><term thcode="1" code="f19045" name="Clinton" parent="fUS19" scope="county"/><term thcode="1" code="f19047" name="Crawford" parent="fUS19" scope="county"/><term thcode="1" code="f19049" name="Dallas" parent="fUS19" scope="county"/><term thcode="1" code="f19051" name="Davis" parent="fUS19" scope="county"/><term thcode="1" code="f19053" name="Decatur" parent="fUS19" scope="county"/><term thcode="1" code="f19055" name="Delaware" parent="fUS19" scope="county"/><term thcode="1" code="f19057" name="Des Moines" parent="fUS19" scope="county"/><term thcode="1" code="f19059" name="Dickinson" parent="fUS19" scope="county"/><term thcode="1" code="f19061" name="Dubuque" parent="fUS19" scope="county"/><term thcode="1" code="f19063" name="Emmet" parent="fUS19" scope="county"/><term thcode="1" code="f19065" name="Fayette" parent="fUS19" scope="county"/><term thcode="1" code="f19067" name="Floyd" parent="fUS19" scope="county"/><term thcode="1" code="f19069" name="Franklin" parent="fUS19" scope="county"/><term thcode="1" code="f19071" name="Fremont" parent="fUS19" scope="county"/><term thcode="1" code="f19073" name="Greene" parent="fUS19" scope="county"/><term thcode="1" code="f19075" name="Grundy" parent="fUS19" scope="county"/><term thcode="1" code="f19077" name="Guthrie" parent="fUS19" scope="county"/><term thcode="1" code="f19079" name="Hamilton" parent="fUS19" scope="county"/><term thcode="1" code="f19081" name="Hancock" parent="fUS19" scope="county"/><term thcode="1" code="f19083" name="Hardin" parent="fUS19" scope="county"/><term thcode="1" code="f19085" name="Harrison" parent="fUS19" scope="county"/><term thcode="1" code="f19087" name="Henry" parent="fUS19" scope="county"/><term thcode="1" code="f19089" name="Howard" parent="fUS19" scope="county"/><term thcode="1" code="f19091" name="Humboldt" parent="fUS19" scope="county"/><term thcode="1" code="f19093" name="Ida" parent="fUS19" scope="county"/><term thcode="1" code="f19095" name="Iowa" parent="fUS19" scope="county"/><term thcode="1" code="f19097" name="Jackson" parent="fUS19" scope="county"/><term thcode="1" code="f19099" name="Jasper" parent="fUS19" scope="county"/><term thcode="1" code="f19101" name="Jefferson" parent="fUS19" scope="county"/><term thcode="1" code="f19103" name="Johnson" parent="fUS19" scope="county"/><term thcode="1" code="f19105" name="Jones" parent="fUS19" scope="county"/><term thcode="1" code="f19107" name="Keokuk" parent="fUS19" scope="county"/><term thcode="1" code="f19109" name="Kossuth" parent="fUS19" scope="county"/><term thcode="1" code="f19111" name="Lee" parent="fUS19" scope="county"/><term thcode="1" code="f19113" name="Linn" parent="fUS19" scope="county"/><term thcode="1" code="f19115" name="Louisa" parent="fUS19" scope="county"/><term thcode="1" code="f19117" name="Lucas" parent="fUS19" scope="county"/><term thcode="1" code="f19119" name="Lyon" parent="fUS19" scope="county"/><term thcode="1" code="f19121" name="Madison" parent="fUS19" scope="county"/><term thcode="1" code="f19123" name="Mahaska" parent="fUS19" scope="county"/><term thcode="1" code="f19125" name="Marion" parent="fUS19" scope="county"/><term thcode="1" code="f19127" name="Marshall" parent="fUS19" scope="county"/><term thcode="1" code="f19129" name="Mills" parent="fUS19" scope="county"/><term thcode="1" code="f19131" name="Mitchell" parent="fUS19" scope="county"/><term thcode="1" code="f19133" name="Monona" parent="fUS19" scope="county"/><term thcode="1" code="f19135" name="Monroe" parent="fUS19" scope="county"/><term thcode="1" code="f19137" name="Montgomery" parent="fUS19" scope="county"/><term thcode="1" code="f19139" name="Muscatine" parent="fUS19" scope="county"/><term thcode="1" code="f19141" name="O'Brien" parent="fUS19" scope="county"/><term thcode="1" code="f19143" name="Osceola" parent="fUS19" scope="county"/><term thcode="1" code="f19145" name="Page" parent="fUS19" scope="county"/><term thcode="1" code="f19147" name="Palo Alto" parent="fUS19" scope="county"/><term thcode="1" code="f19149" name="Plymouth" parent="fUS19" scope="county"/><term thcode="1" code="f19151" name="Pocahontas" parent="fUS19" scope="county"/><term thcode="1" code="f19153" name="Polk" parent="fUS19" scope="county"/><term thcode="1" code="f19155" name="Pottawattamie" parent="fUS19" scope="county"/><term thcode="1" code="f19157" name="Poweshiek" parent="fUS19" scope="county"/><term thcode="1" code="f19159" name="Ringgold" parent="fUS19" scope="county"/><term thcode="1" code="f19161" name="Sac" parent="fUS19" scope="county"/><term thcode="1" code="f19163" name="Scott" parent="fUS19" scope="county"/><term thcode="1" code="f19165" name="Shelby" parent="fUS19" scope="county"/><term thcode="1" code="f19167" name="Sioux" parent="fUS19" scope="county"/><term thcode="1" code="f19169" name="Story" parent="fUS19" scope="county"/><term thcode="1" code="f19171" name="Tama" parent="fUS19" scope="county"/><term thcode="1" code="f19173" name="Taylor" parent="fUS19" scope="county"/><term thcode="1" code="f19175" name="Union" parent="fUS19" scope="county"/><term thcode="1" code="f19177" name="Van Buren" parent="fUS19" scope="county"/><term thcode="1" code="f19179" name="Wapello" parent="fUS19" scope="county"/><term thcode="1" code="f19181" name="Warren" parent="fUS19" scope="county"/><term thcode="1" code="f19183" name="Washington" parent="fUS19" scope="county"/><term thcode="1" code="f19185" name="Wayne" parent="fUS19" scope="county"/><term thcode="1" code="f19187" name="Webster" parent="fUS19" scope="county"/><term thcode="1" code="f19189" name="Winnebago" parent="fUS19" scope="county"/><term thcode="1" code="f19191" name="Winneshiek" parent="fUS19" scope="county"/><term thcode="1" code="f19193" name="Woodbury" parent="fUS19" scope="county"/><term thcode="1" code="f19195" name="Worth" parent="fUS19" scope="county"/><term thcode="1" code="f19197" name="Wright" parent="fUS19" scope="county"/></nt><rt><term thcode="1" code="q41092" name="Burlington" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="a312" name="Cambrian-Ordovician aquifer system" parent="aroot" scope="aquifer"/><term thcode="1" code="q41094" name="Centerville" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1028" name="Chariton-Grand" parent="h10" scope="hydrologic subregion"/><term thcode="1" code="q42092" name="Davenport" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h0710" name="Des Moines" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="q42094" name="Des Moines" 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="q44096" name="Fairmont" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q43096" name="Fort Dodge" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42098" name="Fremont" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q44092" name="La Crosse" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="a304" name="Lower Cretaceous aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="q44094" name="Mason City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h0702" name="Minnesota" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="a503" name="Mississippian aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="h1017" name="Missouri-Big Sioux" parent="h10" scope="hydrologic subregion"/><term thcode="1" code="h1023" name="Missouri-Little Sioux" parent="h10" scope="hydrologic subregion"/><term thcode="1" code="h1024" name="Missouri-Nishnabotna" parent="h10" scope="hydrologic subregion"/><term thcode="1" code="q41096" name="Nebraska City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q42096" name="Omaha" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h1020" name="Platte" parent="h10" scope="hydrologic subregion"/><term thcode="1" code="a410" name="Silurian-Devonian aquifers" parent="aroot" scope="aquifer"/><term thcode="1" code="q43098" name="Sioux City" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="q44098" name="Sioux Falls" parent="qroot" scope="quadrangle 1:250,000 scale"/><term thcode="1" code="h0704" name="Upper Mississippi-Black-Root" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="h0708" name="Upper Mississippi-Iowa-Skunk-Wapsipinicon" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="h0706" name="Upper Mississippi-Maquoketa-Plum" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="h0711" name="Upper Mississippi-Salt" parent="h07" scope="hydrologic subregion"/><term thcode="1" code="a412" name="Upper carbonate aquifer" parent="aroot" scope="aquifer"/><term thcode="1" code="q43094" name="Waterloo" parent="qroot" scope="quadrangle 1:250,000 scale"/></rt></descriptor>