Fort de Tournoux, Military fortress in Ubaye Valley, France.
The Fort de Tournoux extends across multiple levels on a rocky outcrop, featuring a 1000-step staircase connecting its different defensive positions.
The construction of this Alpine fortress began in 1843 and continued through 1865, designed to protect France from potential Italian invasions.
The fort contains three distinct military architectural sections: the B12 battery at 1330 meters, middle fort at 1550 meters, and upper fort at 1690 meters.
Following safety improvements in 2016, visitors can now access the Caurres battery section, which received new cannons during the 1880 fortification enhancement.
This mountain fortress served as an optical transmission point in the communication chain between Briançon and Toulon, using the Serre de l'Aut fortification.
Location: La Condamine-Châtelard
Location: Saint-Paul-sur-Ubaye
Part of: Séré de Rivières system, Maginot Line
GPS coordinates: 44.46932,6.75361
Latest update: June 23, 2025 09:44
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