National Topographic Base of Spain

Multiscale three-dimensional database (1:2,000-1:25,000) with full and continuous coverage for Spain. It contains topographic and thematic data that allow its exploitation through geographic information systems and the generation of cartographic products. It includes hydrographic information with network structure and geographical reference information of the IGN on transport and populations. It also integrates information on buildings and constructions of national cadastres, information on topographical bases produced by the Autonomous Communities and other official sources of the Public Administrations. The resolution of the data depends on the subject matter, but you can ensure that overall positional accuracy is better than 3 meters in X, Y, Z.