L.B.P.-H., that is: Lokal Bahn Payerbach - Reichenau, the original name of the Höllentalbahn

As it is usual with Alpine railway construction, there were numerous plans and ideas for the construction of a railway line in the area. The Firma Neusiedler AG planned to build a standard-gauge railway from the Südbahn to Hirschwang and a branch line to the village of Prien, and to support the construction work a material railway of 76-cm-gauge was built. Some of the embankments of the standard-gauge railway, as well as the boring of the 428 m long Artzbergtunnel were finished during World War 1, but the collapse of the Austro-Hungarian Monarchy made it imposible to continue. Of the tunnel, only the lower part of the arch was finished, but the tunnel was closed and filled, the legend holds, that with military equipment still sheltered inside.