Jougne-Eclépens Railway

The Jougne–Eclépens opened a railway from a junction with the Jura Foot Railway of the West Switzerland Company (Compagnie de l'Ouest Suisse) at Daillens (near Eclépens) to Vallorbe on the Swiss border on 1 July 1870 and its extension from Vallorbe to Jougne in France on 1 July 1875.

The continuation of the line to Pontarlier was owned by the Chemins de fer de Paris à Lyon et à la Méditerranée (PLM).

Until the Simplon Tunnel was built, it offered no advantage over the Paris–Lyon–Geneva and Pontarlier–Les Verrieres–Neuchâtel lines.

The regional traffic in the sparsely populated area was low and the JE collected too little income.

In 1872, the Western Switzerland Railways (Chemins de fer de la Suisse Occidentale, SO) acquired a significant stake in JE to prevent it from being taken over by its competitors as a result of its continuing financial problems.

Le Day Viaduct near Vallorbe