This mountain range in the north of Hungary gives its name to a Middle Neolithic regional group of the Alfold Linear pottery culture of the late 5th millennium be. The appreciable number of cave sites in upland locations indicates a seasonal focus on transhumance, as well as the exploitation of rocks for axes and other tools. Within the Biikk culture are sites with hoards of axes and halffinished unused flint blades. While the distinctive painted and incised Biikk pottery and obsidian was introduced into exchange networks north and south of the Carpathians, it should be noted that, contrary to the claims of V.G. Childe, there are no obsidian sources in the Biikk Mountains themselves.