Mining acitivity is known from two different phases of South Scandinavian Neolithic. The only suitable type of flint is the darkgrey flint of the Maastrichtien, available to prehistoric man only in parts of northwest Jutland and the south-eastern parts of the islands of Sjaelland and Mon. White chalk with its flint could also be found inbedded in boulder clay of the Weichselglaciation, e.g. in central Sjaelland and western Sk§ne (where the old and wellknown Neolithic mines from Sallerup and Kvarnby near Malmo are found).