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The Libre Map Project was started by Jared Benedict and around 100 additional individuals contributing money to purchase (or "liberate") a full set of 1:24K scale USGS topographic maps in Digital raster graphic form. [1] The map files were then hosted by archive.org to ensure the map data will continue to be freely available to everyone ...
The Archive includes each U.S. state and territory, in all scales, editions and various printings. With coverage dating from the 1880s when the USGS began publishing standard topographic quadrangles, the Archive is the most complete collection of USGS topographic maps.
The United States remains virtually the only developed country in the world without a standardized civilian topographic map series in the standard 1:25,000 or 1:50,000 metric scales, making coordination difficult in border regions (the U.S. military does issue 1:50,000 scale topo maps of the continental United States, though only for use by ...
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.
Its assigned mission was to provide AMS with required geodetic, mapping control and field classification data which are used in the production of various scale topographic maps. The battalion operated in Libya, Iran , Ethiopia (including the Ethiopia – United States Mapping Mission ) and Liberia , and in some of the most rugged terrain in the ...
It provides topographic maps and data to meet the needs of the sustainable development of the nation. The Office of Spatial Data Management provides an online free map service MapConnect. [ 12 ] These topographic maps of scales 1:250,000 and 1:100,000 are available in printed form from the Sales Centre.
TopoQuest is a free web mapping service built on open source software that provides internet-based topographic map for most of the United States. The site is one of three internet services used by Wikipedia for providing topographic maps.
Each map in a MOSS database could have up to 32,000 features. There was no limit on the number of maps in the database. Each map had a map header that contained a variety of metadata, such as the coordinate reference system (projection), date of creation, owner, data of last update, description, and so forth. Metadata was "searchable".