The cave of Etxeberriko Karbia, in the “ Massif des Arbailles” (Western Pyrenees), has been the subject of spelunking expeditions since the early 20th century. However, during a visit in May 1950, P. Boucher, with G. Laplace, discovered a small painting of a red horse as they were on their way out of the cave before crossing through a crawlway. The following year, Laplace decided to study the art in this cave and, in 1952, he published the results along with the cave of Sasiziloaga (Laplace, 1952a and b). The general shape of the cave of Etxeberri is a 200 m long north-south gallery, with a difficult passage. It begins with a large chamber scattered with huge blocks from the partially collapsed vault. Accessing the decorated areas is partic...