It is convenient to begin this study of Azilian harpoons by first considering the Magdalenian harpoons of northern Spain. The two Basque sites of Aitzbitarte, a few miles within the Spanish side of the frontier, and Isturitz, not many miles within the French side of the frontier, are useful in delimiting the Spanish area from the point of view of the fauna. At Aitzbitarte, Harlé (1908) found a great predominance of red deer with one or two odd fragments of reindeer antler, whereas the well-known excavations by St. Périer (1936) at Isturitz showed a great preponderance of reindeer in conformity with other sites in the Pyrenees. The other occurrences in the three east Spanish provinces agree with that at Aitzbitarte (for instance, at Valle, Lorenzo Sierra, 1908, gives the ratio of antler fragments as red deer to reindeer: 73–1). Judged by the fauna, therefore, the modern political frontier corresponds roughly to the limit of the effective penetration of the reindeer westward, and consequently to the line of demarcation between harpoon-heads made respectively from red deer and reindeer antler.
The subdivision of the Magdalenian deposits in north Spain has never been satısfactorily resolved, and they have obstinately refused to conform to the French sequence. The main difficulty has been the lack of stratified sites; only Cueto de la Mina has yielded three layers; and two or three other caves have given two layers. Nevertheless two stages, an earlier one without and a later one with harpoons have been clearly distinguished (Breuil and Obermaier, 1936, 165–70, 192–4). Although no stratigraphical division of this later stage is possible, a number of interesting points arise from a typological study of the known harpoons.