@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/47a6d290-be54-4925-a36a-bf001ecafefc> a dcat:Dataset ;
    dct:description """<p>Loudoun County, Office of Mapping and Geographic Information (OMAGI) has a seamless countywide base map geodatabase that can be used as a reference when mapping all other data. Base Map data layers include planimetric (buildings, roads, miscellaneous cultural features), environmental (hydrology, forest cover), and topographic (elevation contours and spot heights) features. Each base map feature has an update date field associated with it which shows the year when that particular feature was last updated.</p><p>The countywide remapping project, conducted in two phases, was undertaken to produce the current data set. Phase I, using 2002 Virginia Base Mapping Program digital scanned imagery and Phase II, using 2004 scanned aerial photography, comprises the initial re-map effort. The initial project was completed in 2005 and now undergoes annual updates.     The first annual update, Phase III, was​ derived from 2005 imagery and completed in fall 2006. The second annual update, Phase IV, was derived from 2007 imagery and completed in spring 2007. Phase V of the base map updates was completed in late 2008. Most recent updates were derived from 2020 imagery and completed in Spring 2021.</p><div><div><span><a href='https://logis.loudoun.gov/loudoun/disclaimer.html' target='_blank' rel='nofollow ugc noopener noreferrer'>Disclaimer</a> <span>                           Loudoun County <b><i>is not liable</i></b> for any use of or reliance upon this 
map or data, or any information contained herein. While reasonable efforts have 
been made to obtain accurate data, the County makes no warranty, expressed or 
implied, as to its accuracy, completeness, or fitness for use of any purpose.          </span>         </span></div><table><tbody><tr><td></td></tr></tbody></table></div>""" ;
    dct:identifier <https://geohub-loudoungis.opendata.arcgis.com/apps/LoudounGIS::base-map-update-years-2007-2020> ;
    dct:issued "2018-03-07T03:47:39+00:00"^^xsd:dateTime ;
    dct:modified "2021-12-29T14:57:47+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-78.8740 37.9460, -78.8740 39.7770, -75.9300 39.7770, -75.9300 37.9460, -78.8740 37.9460))"^^gsp:wktLiteral ] ;
    dct:title "Base Map Update Years: 2007-2020" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Mita.Mathur@loudoun.gov_LoudounGIS" ;
            vcard:hasEmail <mailto:mapping@loudoun.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/47a6d290-be54-4925-a36a-bf001ecafefc/resource/2848e4d2-c9fb-4ee5-b99c-cf8ca45975e4>,
        <https://data.amerigeoss.org/dataset/47a6d290-be54-4925-a36a-bf001ecafefc/resource/f7645247-13e2-4469-9063-fece94efc82d> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "base-layers",
        "basemap",
        "ckan",
        "geo",
        "geoss",
        "loudoun",
        "national",
        "north-america",
        "united-states",
        "update-cycle" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/47a6d290-be54-4925-a36a-bf001ecafefc/resource/2848e4d2-c9fb-4ee5-b99c-cf8ca45975e4> a dcat:Distribution ;
    dct:format "ArcGIS GeoServices REST API" ;
    dct:issued "2022-01-24T23:15:01.336754"^^xsd:dateTime ;
    dct:modified "2025-11-21T10:18:11.752926"^^xsd:dateTime ;
    dct:title "ArcGIS GeoService" ;
    dcat:accessURL <https://loudoungis.maps.arcgis.com/apps/StoryMapBasic/index.html?appid=1538f6346bb74245b02ab336c89c775d> ;
    dcat:mediaType "application/json" .

<https://data.amerigeoss.org/dataset/47a6d290-be54-4925-a36a-bf001ecafefc/resource/f7645247-13e2-4469-9063-fece94efc82d> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2022-01-24T23:15:01.336746"^^xsd:dateTime ;
    dct:modified "2025-11-21T10:18:11.752502"^^xsd:dateTime ;
    dct:title "ArcGIS Hub Dataset" ;
    dcat:accessURL <https://geohub-loudoungis.opendata.arcgis.com/apps/LoudounGIS::base-map-update-years-2007-2020> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .