The Zederhaus Valley is located in the northwestern part of the Salzburg
Lungau region, on the southern slopes of the
Lower Tauern mountain range, reaching up to Mt
Weißeck at . The crest of the
Radstadt Tauern in the north separates it from the
Pongau region. From the Rieding high valley, today a
protected area, the Zederhaus creek flows southeastwards, reaching the upper
Mur River at neighbouring
Sankt Michael. The smaller village stream passes several historic
watermills. The sparsely settled municipal area, the largest in the Tamsweg District, comprises the
cadastral communities of Lamm, Rothenwand, Wald, and Zederhaus proper. The valley today is characterised by the construction of the
Tauern Autobahn in the 1970s, a major north-south road connection which is part of the
European route E55. The south portal of the
Tauern Road Tunnel, one of the longest in Austria, is located near the Zederhaus centre. A junction leads on the motorway in the
Salzburg direction. Several attempts have been made to reduce emissions by the construction of extended
noise protection walls; currently an overhead noise barrier is built along a section near the Zederhaus village centre. ==History==