The Soil Map of Catalonia 1: 250 000 is the result of the synthesis of the edaphological data available at the time of its preparation, in 2018. This process, carried out by the Cartographic and Geological Institute of Catalonia, has consisted of in the compilation, analysis and correlation of the cartographic information obtained in the different soil mapping works that have been executed in Catalonia since the 70's of the last century.

Magnetic anomaly measurements and zoning of the territory according to this at a scale of 1:250,000.

Measurements of gravimetric anomalies and zoning of the territory according to them: the gravimetric anomaly of Bouguer at a scale of 1:250,000 and 1:500,000; the regional gravimetric anomaly at a scale of 1:250,000; and the residual gravimetric anomaly at a scale of 1:250,000.

Synthesis of the geological constitution of Catalonia through the cartographic representation of lithostratigraphic geological units, major structural elements (unconformities, faults and folds) and types of contact between units. The situation of the soundings carried out for the exploration of hydrocarbons is also included.

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.