Instituto Geográfico Nacional (Spain)

The ''Instituto Geográfico Nacional'' (''IGN''), or National Geographic Institute is a Spanish government agency, dependent on the Spanish Ministry of Public Works. Founded in 1870, it is the national mapping agency for Spain, together with the 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. Provided by Wikipedia