

It is the fourth and last mill of Murs. It owes its name to an abyss probably belonging to the karst-hydraulic system of Monts-de-Vaucluse which feeds Fontaine-de-Vaucluse. From this mill, only the cannon cut into the rock remains and which carried a vertical wheel, which is quite unusual here. We can assume that this is not a flour mill for which an horizontal wheel is preferred; it was probably used for industrial purposes:: a grinder to sharpen.