{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Not Provided", "hasEmail": "mailto:tnm_help@usgs.gov"}, "description": "USGS Historical Quadrangle in GeoPDF. The USGS Historical Topographic Map Collection (HTMC) is scanning all scales and all editions of topographic maps published by the U.S. Geological Survey (USGS) since the inception of the topographic mapping program in 1884.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://www.usgs.gov/programs/national-geospatial-program/historical-topographic-maps-preserving-past", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.bb7b145f-8d7f-405b-96ae-348d61172951.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_bb7b145f-8d7f-405b-96ae-348d61172951", "keyword": ["United States", "imageryBaseMapsEarthCover", "US", "hydrography", "boundary", "topographic", "geographic names", "contour", "U.S. National Grid", "Public Land Survey System", "orthoimage", "woodland", "structures", "transportation", "USGS:bb7b145f-8d7f-405b-96ae-348d61172951"], "modified": "2025-02-14T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-180, -14.3833333, 180, 72", "theme": ["geospatial"], "title": "USGS Historical Topographic Map Collection"}