A cave system in the Pyrenees-Anlantiques of southwest France with one of the longest sequences of Palaeolithic strata yet known. Several Mousterian levels were overlain by a long sequence of Upper Palaeolithic levels. Human remains were found and numerous portable art objects and wall-engravings have been recovered, mainly in the Magdalenian levels. There are also intact Magdalenian hearths on the floor of the lowest tunnel, the Erberua.