The Montreux–Lenk im Simmental line is a metre-gauge electric railway line in Switzerland run by the Montreux Oberland Bernois Railway (MOB) and links Montreux on Lake Geneva by way of Les Avants, Montbovon, Rossinière, Château-d'Œx, Rougemont, Saanen, Gstaad and Zweisimmen with Lenk im Simmental.

The line was further extended from Les Avants to Montbovon on 1 October 1903,[3] Chateau d'Œx on 19 August 1904, Gstaad on 20 December 1904, and Zweisimmen on 6 July 1905.

Since the 1966 suspension of passenger services on this line, the Blonay–Chamby Museum Railway has been running scheduled nostalgic trips on summer weekends.

In response, the Swiss Railway Department implemented on 23 June 1899 negotiations whose goal was to reach an agreement or compromise between the two initiative committees, and with the cantonal governments that were affected.

Since the Bern and Vaud cantonal governments supported the Montreux committee, the project initiators from Fribourg agreed to forgo the concession, but at the same time were given the right to build the station at Montbovon (which to this day belongs to the TPF).

Still left open by the Federal representatives, though, was the question of who should get ownership of the short stretch of the line from Montbovon to the cantonal boundary just before La Tine (a hamlet in Rossinière).