The continuous and digital Permeability Map of Spain at a scale of 1:200.000000 is based on the continuous Lithostratigraphic Map of Spain at a scale of 1:200.000 and represents the mapped lithostratigraphic levels grouped by similar permeability values. In order to carry it out, firstly, a legend was drawn up in which a degree of permeability was assigned to each mapped lithostratigraphic unit. Five types of permeability were established: Very high, High, Medium, Low and Very low. The different lithologies were associated into 7 large groups (carbonate, detrital, Quaternary detrital, volcanic, metadetritic, igneous and evaporitic), giving rise to a classification by types of aquifers, established according to the formation processes of each permeability. This map clearly shows the hydrogeological domains with a predominance of calcareous and evaporitic, detritic and crystalline aquifers, highlighting the main peninsular and island structural lines that bring the different groundwater bodies defined into contact with each other. This cartography is adapted to the hydrographic network and the shadow model produced by CEDEX, at a scale of 1:200,000, based on the topographic base, at a scale of 1:50,000, of the Army Cartographic Service. The cartographic information is referenced to coordinates in UTM projection, European Datum, zone 30, except for that corresponding to the Canary Islands, which is referenced to zone 28. The map is made up of the Cartographic Units Information Layer (LPIT) and the external table dat table, which assigns to each lithostratigraphic formation (FH) the degree of permeability as well as the colour of representation. The format of the generated information is Shape file.

The continuous Hydrogeological Map of Spain in digital format at a scale of 1:200,000 is based on the Lithostratigraphic and Permeability Map of Spain, continuous at a scale of 1:200,000 and represents the mapped lithostratigraphic levels, grouped by range of permeability and the associated lithologies, and represented with a certain colour and tone, so that it is possible to visualise the areas associated with the different aquifers on the map. Blue colours represent porous aquifers, green colours represent fissured or karstic aquifers and brown colours represent impermeable or low permeability formations. Productivity is represented by the tone, in the case of permeable formations, dark tones indicate greater productivity and in the case of impermeable formations indicate greater impermeability. For the preparation of the Hydrogeological Map, once it had been verified that the formations that make up the main aquifers were cartographically differentiated on the Lithostratigraphic and Permeability Map of Spain, a hydrogeological legend was drawn up, grouping them according to their permeability, geometry, hydraulic relationship and hydrogeological functioning. This work was carried out taking into account the existing information on the different aquifers in Spain as well as the groundwater bodies defined in accordance with the Water Framework Directive (WFD). The continuous Hydrogeological Map of Spain in digital format at a scale of 1:200,000,000 arises from the need for a continuous map of the entire national territory on which to capture the information and distribution of the groundwater bodies (m.a.s). This cartography is adapted to the hydrographic network and the shadow model made by CEDEX, at a scale of 1:20,000, from the topographic base, at a scale of 1:50,000, of the Army Cartographic Service. The cartographic information is referenced to coordinates in UTM projection, European Datum, zone 30, except for the Canary Islands, which is referenced to zone 28. The Hydrogeological Map is made up of a polygonal layer of cartographic units (LPLIT) and the external tables Hidro.dat and Descrip_hidro.dat. The format of the information generated is Shape file.

The Map of the Karst of Spain includes the different 'karstifiable' lithologies indicating their type (carbonates, gypsums and detritus), and the intensity of karstification in each of the areas. Also included are caves, poles, outcrops and other hydrogeological and geomorphological entities linked to karstification processes

Service of visualization of the Map of the Karst in Spain on a scale 1:1.000.000, which gathers the different 'karstifiable' lithologies indicating their type (carbonates, gypsums and detritus), and the intensity of karstification in each one of the zones. Also included are caves, poles, outcrops and other hydrogeological and geomorphological entities linked to karstification processes.