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IGN benchmark at Saint Goussaud, Limousin, France, by Institut Geographique National. The IGN is responsible for the management and updating of: geodetic and levelling networks, aerial photographs, geographical databases and maps. It has to lead research, and to take part in the standardization process in the field of geographical information ...
Géoportail is a comprehensive web mapping service of the French government that publishes maps and geophysical aerial photographs from more than 90 sources for France and its territories. The service, first developed by two public agencies (the IGN and the BRGM), was officially inaugurated on 23 June 2006 by president Jacques Chirac.
Created in 1986, IGN FI is the private subsidiary of the French Institut Géographique National (IGN) and works essentially abroad. [1] Its goal is to promote the savoir-faire [ clarification needed ] of the French IGN around the world.
Hand-drawn map of one side of the Valley of Vesdre by French geographers (led by the Cassini family) from 1745 to 1748. In France, the first general maps of the territory using a measuring apparatus were made by the Cassini family during the 18th century on a scale of 1:86,400 (one centimeter on the chart corresponds to approximately 864 meters on the ground).
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A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at [[:fr:Nivellement général de la France]]; see its history for attribution. You may also add the template {{Translated|fr|Nivellement général de la France}} to the talk page. For more guidance, see Wikipedia:Translation.
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