National Geographic Institute (Spain)

The National Geographic Institute (Spanish: Instituto Geográfico Nacional, IGN) is a government agency of the Spanish Ministry of Transport. Founded in 1870, it is the national mapping agency for Spain, together with the National Center for Geographic Information (Centro Nacional de Información Geográfica, CNIG).

Since 2015, most of its products (including MTN50 and MTN25 topographic maps, and PNOA aerial photographies) are freely available online, and licensed under a CC-BY-4.0-like license, as FOM/2807/2015 decree requires its products must be released under a free license.

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