‘I’ is for IGN: How they made their Sahara Maps

Part of an occasional Sahara A to Z series
Hang around long enough and you’ll get the full set

See also:
Old Saharan Trade Routes Map
‘V’ is for Vintage Sahara Maps
Sahara – blanks on the map
Maps of the Sahara

Here a fascinating 1960s vintage film (45mins; French) on the work it took IGN to produce their brilliant 1:200,000 scale Sahara maps from thousands of aerial photos, sonar readings and laborious ground surveys.
Loads more in Yves R’s Sahara website and some stills below.

4 thoughts on “‘I’ is for IGN: How they made their Sahara Maps

  1. Pingback: Sahara – Blanks on the Map | Sahara Overland

  2. Pingback: Old Saharan Trade Routes Map | Sahara Overland

  3. Pingback: ‘V’ is for Vintage Sahara Maps | Sahara Overland

  4. Pingback: Maps of the Sahara | Sahara Overland

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