The Saint-Ours Haut fort was part of the Ubaye Maginot Line.
Ensuring the flanking of Roche-la-Croix, it blocked the road to the Col de Larche. A role that the two forts played perfectly in June 1940, before the Armistice.
Description
The underground force of the valley
Entirely carved into the rock, the Saint-Ours Haut fort is an impressive Maginot Line structure, designed to protect men and equipment from enemy fire. Only its combat blocks with their formidable armored bells emerge.
With its underground galleries, its barracks, its power station and its firing zones, it was decisive during the Italian offensive of June 1940. Thanks to its crossfire with Roche-la-Croix, it stopped the enemy on the border.
The largest completed structure in the valley, combining artillery and infantry, remains a powerful testament to military ingenuity in an Alpine environment.
Other details
● Tour duration: approximately 2 hours, including 1 hour in cold and damp underground galleries (approximately 10-12°C). ● Please wear warm clothing and appropriate footwear. ● Approximately 50 steps to descend… and ascend. ● Registration is required online or at Ubaye Tourism offices.
Rates / opening
Prices
● Adult: €10
● Child (6-14 years): €5
● Family package (2 adults and 2 children aged 6 to 14): €25
● Free for children under 6
Opening
Wednesday, June 3, 2026, guided tours at 10:30 am and 15:30 pm.
Sunday, June 7, 2026, guided tours at 10:30 am and 15:30 pm.
Wednesday, June 10, 2026, guided tours at 10:30 am and 15:30 pm.
Sunday, June 14, 2026, guided tours at 10:30 am and 15:30 pm.
Wednesday, June 17, 2026, guided tour at 15:30 p.m.
Sunday, June 21, 2026, guided tours at 10:30 am and 15:30 pm.
Wednesday, June 24, 2026, guided tours at 10:30 am and 15:30 pm.