The mill of La Foux is located at the resurgence of the Vis; although the river starts at an altitude of 1300 m on the Montagne du Lingas, it sinks below the chalky upland of the Larzac. The waters come to the surface again after an underground course that takes 28 days. The mill is located at the resurgence, which has an average flow of 1,200 litres per second. It was working until the beginning of the XX century and it has recently been restructured. It consists of two buildings with a stone penstock feeding a horizontal wheel. It used to be a wheat mill, furnished with four grindstones made of chalky stones.