Crossing of two cogwheel steamtrains on 2120 meter a.s.l. in Muttbach-Belvédère station, on the western portal of the Furka summit tunnel. HG 3/4 # 4 is leaving with train 133 from Realp to Gletsch, while HG 3/4 # 1 "Furkahorn" with the "Blue train" 134 from Gletsch to Realp is waiting for departure through the Furka summit tunnel to Furka station. On the rear of train 134 is diesel tractor Tm # 506, built in 1953, which serves as pusher through the summit tunnel (grade is up to 3.0 %) for all eastbound steamtrains. Because of high wild fire risk, there is steam traction on the DFB between Realp and Gletsch only this days. Between Gletsch and Oberwald a diesel train is circulating.