The Höllentalbahn TW 1 seen between Kurhaus and Reichenau an der Rax

The Hirschwang paper mill opened its electrified narrow-gauge industrial railway in 1918 with the 1903 locomotives used on the construction of the Karawanken-Tunnel. These are considered to be the oldest electric locomotives to be in service nowadays. The mining railway body was extended to form today's rolling garden-sheds.