The Soil Parent Material Model details the distribution of physiochemical properties of the weathered and unweathered parent materials of the UK. The free, 1 km-resolution model details six basic parent-material parameters derived from the 1:50 000-scale version. The Soil Parent Material Model details the distribution of physiochemical properties of the weathered and unweathered parent materials of the UK. The free, 1 km-resolution model details six basic parent-material parameters derived from the 1:50 000-scale version. The data is exactly the same as that used in the mySoil application.ly the same as that used in the mySoil application.