Fort de Champillon

The Fort de Champillon is a twentieth-century Swiss fortification located in the heights overlooking the Rhône valley from the north between Montreux and Monthey. Completed in 1944, the fort secures the road and rail lines running east from Lausanne to the mountainous interior of Switzerland. The position is an advanced work protecting the approaches to Fortress Saint-Maurice, part of the Swiss National Redoubt. It is entered from the plateau just downhill from Corbeyrier, a village on the heights at the foot of the Tour d'Aï.

The Fort de Champillon is an artillery fort, intended to provide coverage to advanced positions in the Chablais plan at the eastern end of Lac Léman, and to support advanced positions such as the Fort de Chillon to the west and other positions to the south. The Chablais and Chillon forts were not considered part of Fortress Saint-Maurice proper, but were important advance works to delay and weaken an attacker before they reached the Saint-Maurice stopping line, or fort d'arrêt. The entire region is fortified with anti-tank barriers, permanent minefields and other barriers, while tunnels, bridges and retaining walls are mined or prepared for demolition. Construction at Champillon began in 1942, and was complete in 1944.

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