MGB HGE 4/4II 104 with a Glacier Express descends from the Oberalp pass. In the foreground, the little Reuss river flows into the heart of Switzerland, to become later a pretty big river.
The Glacierexpress decends from the pass of Oberalp shorthly after the highest point of the pass, 2044 meters above sea level. This is mountain railroading with gear wheels.