Tags: Military Structure.
The Fort de Pré-Giroud also known as the Fort de Vallorbe is a 20th-century Swiss fortification located in the Jura Mountains near the Swiss border with France. The fort defended the Col de Jougne at Vallorbe one of the few points in the Jura that could be easily traversable by an invading force. It was a component of the Swiss Border Line of defenses. Built between 1937 and 1939 the fort covers the Swiss end on the Mont d’Or railroad tunnel and the Joux valley.
