In the area between the towns of Krnov and Opava there has been intensive field prospecting for several years, thanks to which 8 localities of workshop have been identified. All sites are located in the belt above the left-bank terrace of the Opava river and connect them with the same phenomenon, which is a significant representation of the chipped industry, exclusively of an old-eneolithic character. The find set contains a large number of semi-products and production waste, which is the main prerequisite for determining sites as production estates or workshops.