<descriptor thcode="3"><thesaurus thcode="3" name="Alexandria Digital Library Feature Type Thesaurus" scope="Types of named geographic features.  Applicable also to many unnamed features but reflects the level of detail traditionally shown on maps, so some feature types specified in scientific studies may not be well represented here.  Not highly specific." creator="Alexandria Digital Library Project, University of California at Santa Barbara" rights="Copyright (c) 1999-2004 by the Regents of the University of California. All rights reserved.\r\n\r\nRedistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:\r\n\r\n   1. Redistributions of source code or dataset must retain the above copyright notice, this list of conditions and the following disclaimer.\r\n   2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.\r\n   3. Neither the name of the University of California, Santa Barbara nor the names of its contributors may be used to endorse or promote products derived from this software or dataset without specific prior written permission.\r\n\r\nTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE OR DATASET, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r\n\r\n[This statement is derived from the BSD license template, http://www.opensource.org/licenses/bsd-license.php]" edition="2.0" date="2002-07-03" codetype="number" prefix="feature" uri="http://www.usgs.gov/science/ADLFeatureType" tblname="feature" nonpref="featnp" relterm="featrt" root_code="1" 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="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/><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="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/></category><altlabel><altlabel>ADLFTT</altlabel><altlabel>ADLFTT</altlabel><altlabel>ADLFeatureType</altlabel><altlabel>ADLFeatureType</altlabel></altlabel></thesaurus><term thcode="3" code="643" name="manmade features" parent="1"/><bt><term thcode="3" code="1" name="Categories"/></bt><nt><term thcode="3" code="19" name="agricultural sites" parent="643" scope="Use for locations and facilities named for their agricultural purposes of raising crops and livestock."/><term thcode="3" code="143" name="buildings" parent="643" scope="Permanent constructions that are roofed and usually walled. [USGS Circ 1048]"/><term thcode="3" code="186" name="cemeteries" parent="643" scope="Areas of land for burying the dead with two or more graves. [USGS Circ 1048]"/><term thcode="3" code="318" name="disposal sites" parent="643" scope="Areas where refuse is dumped. [USGS Circ 1048]"/><term thcode="3" code="386" name="firebreaks" parent="643" scope="Areas cleared of vegetation for the purpose of impeding the progress of a grass or forest fire. [USGS Circ 1048]"/><term thcode="3" code="392" name="fisheries" parent="643" scope="Pools of water and related structures used for spawning and growing of fish (that are subsequently used to stock lakes and streams). [USGS Circ 1048]"/><term thcode="3" code="416" name="fortifications" parent="643" scope="General term for any works made to oppose a small number of troops against a greater. [Getty Art &amp; Architecture Thesaurus]"/><term thcode="3" code="505" name="historical sites" parent="643"/><term thcode="3" code="526" name="hydrographic structures" parent="643" scope="For constructed bodies of water. For natural water bodies, use 'hydrographic features'."/><term thcode="3" code="608" name="launch facilities" parent="643" scope="Areas from which rockets/missiles may be housed and projected, usually equipped with associated buildings and facilities. [USGS Circ 1048]"/><term thcode="3" code="685" name="mine sites" parent="643" scope="Places or areas from which commercial minerals are or were removed by excavation from the Earth. [Adapted from USGS Feature Class Definitions &lt;http://geonames.usgs.gov/domestic/feature_class.htm&gt;]"/><term thcode="3" code="700" name="monuments" parent="643" scope="Structures erected as memorials. [Adapted from American Heritage Dic. of the English Language, 4th ed.]"/><term thcode="3" code="762" name="oil fields" parent="643" scope="Areas with reserves of recoverable petroleum or where petroleum has been removed from the Earth.  [Adapted from USGS Feature Class Definitions &lt;http://geonames.usgs.gov/domestic/feature_class.htm&gt;]"/><term thcode="3" code="794" name="parks" parent="643" scope="Places or areas developed for public use or recreation. [USGS Circ 1048]"/><term thcode="3" code="918" name="recreational facilities" parent="643"/><term thcode="3" code="922" name="reference locations" parent="643"/><term thcode="3" code="935" name="research areas" parent="643"/><term thcode="3" code="940" name="reserves" parent="643" scope="Areas set aside for the preservation of fauna, flora, and their natural habitats. [Macmillan Encyc., 2001]"/><term thcode="3" code="1087" name="storage structures" parent="643" scope="Large containers used for storage. [USGS Circ 1048]"/><term thcode="3" code="1136" name="telecommunication features" parent="643"/><term thcode="3" code="1157" name="towers" parent="643" scope="Manmade structures, higher than their diameter, generally used for observation, storage, or electronic transmission. [USGS Feature Class Definitions &lt;http://geonames.usgs.gov/domestic/feature_class.htm&gt;]"/><term thcode="3" code="1174" name="transportation features" parent="643"/><term thcode="3" code="1235" name="wells" parent="643" scope="Manmade shafts or holes in the Earth's surface used to obtain fluid or gaseous materials. [USGS Feature Class Definitions &lt;http://geonames.usgs.gov/domestic/feature_class.htm&gt;]"/><term thcode="3" code="1246" name="windmills" parent="643" scope="Mills or other machines that run on the energy generated by a wheel of adjustable blades or flats rotated by the wind. [USGS Circ 1048]"/></nt></descriptor>