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 spatial polygon layer ‘ soilmap_simple ’ in the Belgian Lambert 72 coordinate reference system (EPSG-code 31370), plus a non-spatial table ‘ explanations ’ with the meaning of category codes that occur in the spatial layer. 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 , ... : Compared to previous version soilmap_simple_v1 : the variable bsm_ge_coastalplain has been dropped; the variable bsm_converted has been added; a non-spatial table has been added with explanations of the categories of bsm_mo_substr , bsm_mo_tex , bsm_mo_drain , bsm_mo_prof , bsm_mo_parentmat and bsm_mo_profvar ; a cosmetic bug in the WKT representation of the coordinate reference system has been removed. ...