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.

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.

Classification of soil according to its agrological capacity (ability to sustainably produce the most common crops in an area), in one of the 8 classes established by the Generalitat de Catalunya (Government of Catalonia).

Distribution of soils in the territory according to their morphology and characteristics physical, chemical and biological, and those of the environment where they are found.