Rheineck–Walzenhausen mountain railway
0639.jpg")
![BDeh 1/2 1 after its 2014 overhaul, at its lower terminus](/Images/godic/202502/07/AB_BDeh_1-2_1_Rheineck_0711140640.jpg")
![Car near Ruderbach stop and depot. Note the transition from the level adhesion section to the rack operated former funicular.](/Images/godic/202502/07/090915_Rheineck_IMG_13420640.JPG")
The Rheineck–Walzenhausen mountain railway (German:Bergbahn Rheineck–Walzenhausen; RhW) is a 1.9 kilometres (1.2 mi) long rack railway in Switzerland. It links Rheineck station, in the municipality of Rheineck and the canton of St Gallen, with the village and health resort of Walzenhausen, in the canton of Appenzell Ausserrhoden. Passenger service on the line now forms part of the St. Gallen S-Bahn, branded as the S26.