The data source soilmap_simple is a simplified and standardized derived form of the 'digital soil map of the Flemish Region' (the shapefile of which we named soilmap , for analytical workflows in R) published by 'Databank Ondergrond Vlaanderen’ (DOV). It is a GeoPackage that contains a single spatial polygon layer ‘ soilmap_simple ’ in the Belgian Lambert 72 coordinate reference system (EPSG-code 31370). Further documentation about the digital soil map of the Flemish Region is available in Van Ranst & Sys (2000) and Dudal et al. (2005). This version of soilmap_simple was derived from version ' soilmap_2017-06-20 ' (Zenodo DOI) as follows: all attribute variables received English names (purpose of standardization), starting with prefix bsm_ (referring to the 'Belgian soil map'); attribute variables were reordered; the values of the morphogenetic substrate, texture and drainage variables ( bsm_mo_substr , bsm_mo_tex and bsm_mo_drain + their _explan counterparts) were filled for most features in the ... : Note: the coordinate reference system of the GPKG-file has a cosmetic bug. Text attributes in the WKT string are incorrect or missing, while numerical datum and projection parameters are correct. The file was created when this creation issue in R still existed. ...