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    <titleInfo>
      <title>United States Airports, 1991-2014</title>
    </titleInfo>
    <name type="corporate">
      <namePart>TomTom International (Firm)</namePart>
      <role>
        <roleTerm authority="marcrelator" type="text">creator</roleTerm>
      </role>
    </name>
    <name type="corporate">
      <namePart>Environmental Systems Research Institute (Redlands, Calif.)</namePart>
      <role>
        <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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    <typeOfResource>cartographic</typeOfResource>
    <typeOfResource>software, multimedia</typeOfResource>
    <physicalDescription>
      <form>Shapefile</form>
      <extent>8.175000000000001</extent>
      <digitalOrigin>born digital</digitalOrigin>
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    <language>
      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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    <abstract lang="eng" displayLabel="Abstract">Thisw polygon shapefile represents airport grounds and airport runways within the United States. All airports have a boundary, and most have at least one runway. There are many attributes that describe each airport, for example, location ID (airport code), owner, elevation, congestion level, large certified air carrier enplanements, foreign enplanements, hub size, and tower type. This layer is part of the 2014 ESRI Data and Maps collection for ArcGIS 10.2.</abstract>
    <abstract lang="eng" displayLabel="Purpose">U.S. Airports provides the boundaries for thousands of airports and runways.</abstract>
    <note lang="eng" displayLabel="Preferred citation">TomTom International and ESRI. (2014). United States Airports, 1991-2014. ESRI. Available at: http://purl.stanford.edu/sg863bw4165</note>
    <subject authority="lcsh" lang="eng">
      <topic>Airports</topic>
    </subject>
    <subject authority="lcsh" lang="eng">
      <topic>Airport control towers</topic>
    </subject>
    <subject authority="lcsh" lang="eng">
      <topic>Runways (Aeronautics)</topic>
    </subject>
    <subject authority="geonames" lang="eng">
      <geographic authority="geonames" authorityURI="http://www.geonames.org/ontology#" valueURI="http://sws.geonames.org/6252001/">United States</geographic>
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    <subject authority="geonames" lang="eng">
      <geographic authority="geonames" authorityURI="http://www.geonames.org/ontology#" valueURI="http://sws.geonames.org/4566966/">Puerto Rico</geographic>
    </subject>
    <subject>
      <temporal point="start" encoding="w3cdtf">1991</temporal>
      <temporal point="end" encoding="w3cdtf">2014</temporal>
    </subject>
    <subject authority="ISO19115TopicCategory">
      <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="transportation">Transportation</topic>
    </subject>
    <subject>
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        <scale>1:100000</scale>
        <coordinates>W 171&#xB0;44&#x2B9;39&#x2BA;--W 65&#xB0;58&#x2B9;54&#x2BA;/N 71&#xB0;17&#x2B9;21&#x2BA;--N 18&#xB0;14&#x2BA;</coordinates>
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        <projection>EPSG::4326</projection>
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    <originInfo>
      <dateIssued encoding="w3cdtf" keyDate="yes">2014</dateIssued>
      <dateValid encoding="w3cdtf" point="start">1991</dateValid>
      <dateValid encoding="w3cdtf" point="end">2014</dateValid>
      <publisher>Environmental Systems Research Institute (Redlands, Calif.)</publisher>
      <edition>2014</edition>
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      <url usage="primary display">https://purl.stanford.edu/sg863bw4165</url>
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        <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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      <recordContentSource>Stanford</recordContentSource>
      <recordOrigin>This record was translated from ISO 19139 to MODS v.3 using an xsl transformation.</recordOrigin>
      <recordIdentifier>edu.stanford.purl:sg863bw4165</recordIdentifier>
    </recordInfo>
    <extension displayLabel="geo">
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        <rdf:Description rdf:about="http://purl.stanford.edu/sg863bw4165">
          <dc:format>application/x-esri-shapefile; format=Shapefile</dc:format>
          <dc:type>Dataset#Polygon</dc:type>
          <gml:boundedBy>
            <gml:Envelope gml:srsName="EPSG:4326">
              <gml:lowerCorner>-171.744183 18.003798</gml:lowerCorner>
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    <relatedItem type="host">
      <titleInfo>
        <title>ESRI data &amp; maps : [electronic resource]</title>
      </titleInfo>
      <location>
        <url>https://purl.stanford.edu/sv965pd3272</url>
      </location>
      <typeOfResource collection="yes"/>
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    <accessCondition type="useAndReproduction">These data are licensed by Stanford Libraries and are available to Stanford University affiliates only. Affiliates are limited to current faculty, staff and students. Non affiliates seeking access should contact the publisher directly. These data may not be reproduced or used for any purpose without permission.</accessCondition>
    <accessCondition type="copyright">Copyright ownership resides with the originator.</accessCondition>
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