Blies Survey Project (BSP) is an international cross-border research project aimed at reconstructing the historical landscapes around the ancient settlement of Bliesbruck-Reinheim, within a radius of 12 km. The research project is focused on a region located between the eastern part of the Moselle department in France and the southern part of Saarland in Germany, between two river valleys (namely the Blies and the Sarre) characterized by a long-lasting human occupation, from prehistory to the present. The geomorphological context and the natural environment of the riverbanks and the low hills have been significantly interrelated with settlement patterns and human occupation.