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  2. TopoQuest - Wikipedia

    en.wikipedia.org/wiki/TopoQuest

    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.

  3. List of historical maps - Wikipedia

    en.wikipedia.org/wiki/List_of_historical_maps

    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)

  4. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.

  5. Ordnance Survey - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey

    One series of historic maps, published by Cassini, is a reprint of the Ordnance Survey first series from the mid-19th century but using the OS Landranger projection at 1:50,000 and given 1 km gridlines. This means that features from over 150 years ago fit almost exactly over their modern equivalents and modern grid references can be given to ...

  6. Historical geographic information system - Wikipedia

    en.wikipedia.org/wiki/Historical_geographic...

    A historical geographic information system (also written as historical GIS or HGIS) is a geographic information system that may display, store and analyze data of past geographies and track changes in time. It can be regarded as a tool for historical geography.

  7. David Rumsey Historical Map Collection - Wikipedia

    en.wikipedia.org/wiki/David_Rumsey_Historical...

    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 ...

  8. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    Cylindrical In normal aspect, these map regularly-spaced meridians to equally spaced vertical lines, and parallels to horizontal lines. Pseudocylindrical

  9. OpenHistoricalMap - Wikipedia

    en.wikipedia.org/wiki/OpenHistoricalMap

    A historic map by the United States Coast and Geodetic Survey that has been georeferenced by the Regional Plan Association for mapping historic wetlands in OpenHistoricalMap. OpenHistoricalMap allows anyone with a free account to contribute directly to the map through an editor such as the iD Web application or the JOSM desktop application.