The Lenk branch retraces this route for a very short distance before continuing on its own trackbed. Because of its poor state of repair, this line was closed on 14 June 1975, however, it was fully modernized between 1977 and 1979, having new tracks and overhead lines, reopening on 27 September 1979. New rolling stock was purchased (* in the list below) to operate this line together with the weekdays school service between Zweisimmen and Saanen. Since reopening it has been included in the regular operating schedule of the MOB with timetabled connections to the main line services.