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The National Historical Geographic Information System (NHGIS) is a historical GIS project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2010. The project has created one of the largest collections in the world of statistical census information, much of ...
Large map collections, such as the David Rumsey Historical Map Collection, have digitized and georeferenced their maps and published them on the Internet, making them accessible for a variety of projects. Georeferencing historical microdata, such as census or parish records, allows researchers to conduct spatial analysis of historical data ...
United States Geological Survey, National Program for Topographic Mapping (1884) War of the Rebellion Atlas (1895) Maps of the United Kingdom. The Brittania (John Ogilby, 1670–1676) Principal Triangulation of Great Britain (1784–1853)
The National Map is a significant contribution to the U.S. National Spatial Data Infrastructure (NSDI) from the Federal Geographic Data Committee (FGDC) and currently is being transformed to better serve the geospatial community by providing high quality, integrated geospatial data and improved products and services including new generation ...
The OpenHistoricalMap domain name was purchased in 2009, [10] and an initial fork of the OpenStreetMap website software was deployed there in 2013. [3] [11]In 2015, the similarly named OpenHistoryMap project was founded to promote sharing of archaeological and historical data according to an open access model.
The logo of the United States Geological Survey (USGS) The Geographic Names Information System (GNIS) is a database of name and location information about more than two million physical and cultural features throughout the United States and its territories; the associated states of the Marshall Islands, Federated States of Micronesia, and Palau; and Antarctica.
The David Rumsey Historical Map Collection is a large private map collection with over 150,000 maps and cartographic items. The collection was created by David Rumsey who, after making his fortune in real estate , focused initially on collecting 18th- and 19th century maps of North and South America , as this era "saw the rise of modern ...
The viewer was made seamless by incorporating GDAL. In addition to matching the Topozone URL 's, the website offers free download of GeoTIFFs , which Topozone had only offered for a premium. TopoQuest started adding Canadian 1:50K scale topographic maps in July 2008, and USGS 1:100K and 1:250K scale topographic maps in March 2009.