This is a typical snow blower equipment of the Bernina line of the Rhaetian Railway. One of this two Xrot mt snow blowers is based in Pontresina, the other in Poschiavo in the south. But this day, the "Schalke" diesellocomotive Gmf 234 # 03 is pulling the Xrot mt # 95403 on the Albula line from Pontresina to Landquart, maybe for a repair.