Railcars ABe 4/4 # 30 and # 34 of the Rhaetian Railway in multiple control are running along the Lago Bianco, rounding the "Jochum curve", as train 1623 "Erlebniszug Alp Grüm" (Alp Grüm adventure train) from St.Moritz to the Alp Grüm, between Bernina Lagalb and Ospizio Bernina, on about 2250 meter a.s.l. This now historic railcars were built in 1908/1911 for the then independent Bernina Railway.
