The "C-C" or "Rhaetian Crocodile" Ge 6/6 I # 415, built in 1929, is pulling the "Davos-Filisur special" over the 89 meter high and 210 meter long Wiesen viaduct. This highest viaduct of the Rhaetian Railway, and second highest railway viaduct of Switzerland, was built between 1906 and 1909 with a main span of 55 meter.