This ensemble is located opposite the engravings of fauna mentioned above and on one of the faces of a large free-standing rock at the end of the Gallery. It shows two long linear parallel lines and several series of dotted signs.

At the foot of this rock, it is possible to access a small passageway akin to a shaft, where a natural ledge has been used to represent a bison’s head. This peculiar resource is also found in other northern Spanish and Pyrenean sites, such as Mas d’Azil and Niaux.