Synthesis of the hydrogeological macrounits into which the territory can be divided, called hydrogeological areas, and classification of the formations of the Geological Map of Catalonia 1:250,000 according to their lithological characteristics, type of porosity and consolidation.

Representation of Catalonia by means of topographic cartography at scale 1:250 000, coherent with the series of topographic cartography 1:50 000 v5.1 and 1:100 000 v1.0, with topographic and bathymetric. Download from http://www.icgc.cat.