Résumé en anglais
A vandalism/graffiti/engraving episode occurred recently in a Côa Valley rock art panel in which a hunter from the region engraved a motif (a defecating horse) superimposing two previously existing prehistoric engravings (one from theUpper Palaeolithic, the other from the Neolithic). We shall argue that the contemporary horse aims to question and satirize the value attributed by archaeologists to the prehistoric motifs inscribed by UNESCO in the World Heritage List. We will discuss and to some degree challenge the predominant point of view regarding the need to erase all graffiti, the value of (‘very recent’) contemporary motifs and ultimately how rock art researchers understand not only their discipline of study but also the very concept of rock art aesthetic appreciation. While this may be a highly controversial issue, we intend to question a dogmatic stance in which rock art sites are seen as static manifestations of a dead past, incapable of shaping and establishing dynamic live connections with the present and subsequently the future. We believe this to be a thought provoking case study when considering whether contemporary engraved or painted (graffiti) motifs can be regarded as possessing the significant qualities researchers usually bestow upon older motifs catalogued as rock art, and the feelings of different interest groups on the overall value of rock art heritage.