Klaipėdos universitetas

Local and exotic flint use and distribution are considered as markers of group mobility. The Arch Backed Pieces and the Mazovian societies organised logistics expeditions in various directions, south-north, west-east, using natural routes as river valleys, but also crossing mountains. Their motives seem to be different and not only connected with economic necessity and subsistence strategy. Group mobility, observed rarely on distances more than tens of hundreds of kilometres, was probably a seasonal event, but sometimes may be a reflection of a permanent exodus.