Fort des Quatre Seigneurs

Fort des Quatre Seigneurs stands at 920 meters elevation in the foothills of Chaîne de Belledonne, overlooking the city of Grenoble from its strategic position.

The fortification, constructed between 1875 and 1879, served to prevent enemy forces from accessing Grenoble through routes from Uriage and the plateau of Pinet-d'Uriage.

In 1887, the structure received its name in recognition of Jean Baptiste Annibal Aubert-Dubayet, who served as a deputy and general during the French Revolution.

Three main routes provide access to the fort from Galochère, Eybens, and Uriage les Bains, each requiring a climb of 600 to 700 meters over ten kilometers.

During decontamination operations between 2012 and 2017, workers discovered more than three million ammunition cartridges from World War I within the fort's premises.

Location: Herbeys

Part of: Grenoble fortified belt

GPS coordinates: 45.15360,5.80425

Latest update: October 25, 2025 05:54