Saint-Gingolph–Saint-Maurice_railway
The Saint-Gingolph–Saint-Maurice railway is a single-track railway in Switzerland. It was opened on 14 July 1859 by the Ligne d’Italie. It connects Le Bouveret on Lake Geneva with Saint-Maurice. The line to the French–Swiss border near Saint-Gingolph was opened together with its continuation towards Évian-les-Bains on 1 June 1886. The line together with the French line to Évian is sometimes called the Tonkin Line, because construction workers saw similarities in the geological conditions to Indochina. It was the first railway line in the canton of Valais. A 691 metre-long tunnel had to be built on the approach to Saint-Maurice which is the only major structure of the line (the tunnel was shortened to 490 metres during an upgrade of the Simplon Railway to double track in 1906).