 During the Middle Ages and early modern times, connections over the Katschberg in the west and over the Flattnitz in the east were the main traffic routes in the north-south direction, while routes over Turrach had only local importance, e.g.for the transport of salt from the Salzkammergut to Reichenau (first documented mention in 1332), where there was a branch of the toll office.In the upper Mura valley north of Turracher Höhe, the region around Predlitz (first documented mention in 1311) was sparsely populated because the slopes to the right of the Mura were less suitable for cultivation.