Two coupled "Traverso" trains of the Südostbahn (SOB), RABe 526 # 204/104 and # 221/121, are running the IR 2413 "Treno Gottardo" from Zürich via Arth Goldau-Erstfeld-Gotthard mountain line-Bellinzona to Locarno, on the upper level of the loops of Wassen, between Wassen and Göschenen. The second "Traverso" will be uncoupled in Göschenen and run back empty to Arth Goldau. The train was reinforced for participants of the large scout camp "Mowa" in Ulrichen/Valais. South of Göschenen the platforms on several stations are too short for such a long train.
