The fort supported a complement of 900 officers and men, who were barracked in the Caserne Pellegrin at the base of the fort and in the Fort Moyenne. Looking at the Fort Moyenne in the pictures, the left-hand building was for the soldiers and NCO’s, the right-hand building for the officers. The buildings were supplied with piped drinking water from a “source captee” at the top of the mountain, which fed huge tanks at the Fort Supérieur and the Fort Moyenne. Electricity came to the fort in 1908. Communications were originally by a form of semaphore from mountain-top to mountain-top, but eventually a cable-telegraph was installed linking all the mountain-forts in the area, Fort de Tournoux being the hub for this network.