The oldest of the companies involved was the Chemin de fer funiculaire Territet-Glion, opening in 1883. This was joined at its upper terminus, Glion, in 1892 by the Chemin de fer Glion-Rochers-de-Naye, a rack railway using the system devised by Roman Abt. This gave a link between the shores of Lake Geneva and the summit of Rochers-de-Naye. A direct link was established with the opening of the Chemin de fer Montreux-Glion in 1909. In due time these three companies formed the Chemin de fer Montreux-Territet-Glion-Rochers-de-Naye (MTGN).