{"@type": "dcat:Dataset", "accessLevel": "public", "contactPoint": {"@type": "vcard:Contact", "fn": "DCGISopendata", "hasEmail": "mailto:gisgroup@dc.gov"}, "description": "<DIV STYLE=\"text-align:Left;\"><DIV><DIV><P><SPAN>Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest accuracy in their location. Horizontal Control Point: Surveyed horizontal geodetic control points that are used in the development of an analytical aerotriangulation solution. Vertical Control Point: Surveyed vertical geodetic control points that are used in the development of an analytical aerotriangulation solution.</SPAN></P></DIV></DIV></DIV>", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Location_WebMercator/FeatureServer/1", "format": "ArcGIS GeoServices REST API", "mediaType": "application/json", "title": "ArcGIS GeoService"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/api/download/v1/items/bc206662bbe7402abd1903706f535ed9/csv?layers=1", "format": "CSV", "mediaType": "text/csv", "title": "CSV"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/api/download/v1/items/bc206662bbe7402abd1903706f535ed9/filegdb?layers=1", "format": "ZIP", "mediaType": "application/zip", "title": "File Geodatabase"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/api/download/v1/items/bc206662bbe7402abd1903706f535ed9/geojson?layers=1", "format": "GeoJSON", "mediaType": "application/vnd.geo+json", "title": "GeoJSON"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/api/download/v1/items/bc206662bbe7402abd1903706f535ed9/kml?layers=1", "format": "KML", "mediaType": "application/vnd.google-earth.kml+xml", "title": "KML"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/api/download/v1/items/bc206662bbe7402abd1903706f535ed9/shapefile?layers=1", "format": "ZIP", "mediaType": "application/zip", "title": "Shapefile"}, {"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/datasets/DCGIS::geodetic-control-points", "format": "Web Page", "mediaType": "text/html", "title": "ArcGIS Hub Dataset"}], "identifier": "https://www.arcgis.com/home/item.html?id=bc206662bbe7402abd1903706f535ed9&sublayer=1", "issued": "2015-02-27T21:07:19.000Z", "keyword": ["District of Columbia", "OCTO", "Washington DC", "currentplanimetric", "dc", "elevation", "geodetic control", "location", "planimetrics", "survey"], "landingPage": "https://opendata.dc.gov/datasets/DCGIS::geodetic-control-points", "license": "https://creativecommons.org/licenses/by/4.0", "modified": "2026-02-20T14:35:55.000Z", "publisher": {"name": "Office of the Chief Technology Officer"}, "spatial": "-77.1118,38.8130,-76.9121,38.9945", "theme": ["geospatial"], "title": "Geodetic Control Points"}