Ouvrage Kobenbusch, Maginot Line fortification in Cattenom Forest, France

Ouvrage Kobenbusch is a fortification of the Maginot Line located in Cattenom Forest with seven combat blocks and two entrance blocks. These are connected by underground galleries running approximately 30 meters below ground level.

Construction of Ouvrage Kobenbusch started in 1931 and was completed in 1935 as part of a major French defensive strategy. This fortification was designed to protect the border with Germany and represented the military engineering capabilities of that era.

The fortification represents French military engineering expertise of the 1930s, incorporating advanced defensive systems and self-sustaining infrastructure.

The underground galleries, barracks and magazines lie about 30 metres down and are flooded by the Mirgenbach cooling lake, so no interior tours are possible; only the entrance and combat blocks are visible. The site is managed by the Association Ligne Maginot de Cattenom et environs, which is developing a pedestrian interpretive path across the surface installations. The nearby Abri du Bois-de-Cattenom may be visited at times. Access is through the Cattenom Forest.

The 60 cm narrow-gauge railway that linked the munitions entrance to the combat blocks is still plainly visible in front of the munitions entrance. On the surface, a GFM cloche was cut open by an association to salvage a 75 mm gun barrel.