 The first electrification, on the short section of line from Arth to Goldau, came with the commencement of the winter timetable in 1906.The mountain section from Goldau to Rigi Kulm, only operated in the summer until 1928, had the power switched on the following year, making this the first standard gauge rack and pinion railway in the country to convert to electric traction.Electrification continued in 1937 when the other side of the mountain, the line from Vitnau, came under the wires.