Ouvrage Rochonvillers

Ouvrage Rochonvillers is an underground military fortification with nine combat blocks and two entrances connected by galleries approximately 30 meters below ground level. The structure contained sleeping quarters, kitchens, ammunition storage, power generators, and ventilation systems designed to operate independently for extended periods.

French forces built this Maginot Line fortification between 1929 and 1935 as part of their eastern border defense strategy. During the 1980s, the site was converted into a nuclear-resistant command center capable of sheltering large groups for extended periods.

The fortress represents the military defense strategy of France during the 1930s, demonstrating the engineering capabilities of that period.

Access involves climbing stairs and navigating narrow underground passages that require reasonable physical fitness. Interior spaces remain consistently cool and damp, so bringing an extra layer of clothing is advisable.

The site was designed as a self-contained unit capable of supplying all necessities for 782 soldiers stationed within it. This made it function like a complete underground community with kitchens, sleeping areas, and ammunition manufacturing inside.