The Harmonised Topographic Base (BTA) is a set of vector data of a topographic nature, initially formed in the CAPV by harmonising the topographic bases at 1:5,000 scale of the Provincial Councils. This allows the interoperability and exchange of geographical information between the different Autonomous Communities (CC.AA), Diputaciones Forales (DD.FF.) or the General State Administration (AGE).This vector topographic base covers the following topics: points of reference, geographical names, transport, hydrography, relief, land cover, buildings, services and facilities and toponymy.
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