Based on the methodology of landform-based biodiversity modelling, which was developed in the project “GIS-based reconstructions of Late Palaeolithic land use patterns of the Northeast-Bavarian low mountain range”, this research aims to the analysis of organic resource potential in the territories of Upper Palaeolithic sites on a European scale. By the synchronous and diachronic comparison of the economic conditions and the landscape-accessibility throughout the Upper Palaeolithic, regional patterns can be identified and insights into the respective land use pattern can be gained. An important role plays the accessibility of the site’s periphery. It is strongly determined by the local topography and ground cover and profoundly influences the economic opportunities that can be exploited by hunter-gatherer groups. A Further aspect of the research is the comparison of European time slices and cultures with the Early Ahmarian in the Levant, to track anatomically modern humans on their way to Europe.