In the Lazio soil database, all the information on the Lazio soils collected in the last 50 years has been archived and new information on the soils is collected as it is acquired and made available. In the Regional Geoportal there is the shapefile relating to the points of the pedological observations provided with a complete data set useful for the purposes of the pedological correlation. For a complete description of the soils, see the Open Data site of the Lazio Region (http://dati.lazio.it/catalog/dataset?organization=arsial) where you can consult the data relating to the soil profile files as well as the volumes and cartographies elaborated by ARSIAL regarding the soils of the Region: Atlante dei Soils of Lazio (Ed.2019); Soil Map of Lazio 1:250,000 (Ed. 2019); Land Use Capacity Map of Lazio 1:250,000 (Ed.2019); Legend of the soils of Lazio (Ed.2019) For a complete and exhaustive reading of the data sheets and the terms used, please also refer to: A. C COSTANTINI, 2007 (Coordinator) Guidelines for methods for detecting and computerizing soil data. Ministry of Agricultural, Food and Forestry Policies, 2007. Chapter The description of the soil edited by: M. Paolanti, E.A.C. Costantini, M. Fantappiè, R. Barbetti