Institut national de l'information géographique et forestière
The National Institute of Geographic and Forestry Information is the national French organization of mapping, geodesy and cartography. It was established in 1940 in Paris, France.
Institut National De L'information Géographique Et Forestière Media
IGN benchmark at Saint Goussaud, Limousin, France, by Institut Geographique National
Boeing B-17 survey aircraft of the IGN at Creil airfield in 1957
Hurel-Dubois HD.34 survey aircraft of the IGN at Creil in 1967
Other websites
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- Official site (in French)
- IGN Fortresses history (in French) (in French)