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Rock art is a worldwide phenomenon: our ancestors used rocks to draw on, either with paint (pictographs) or by carving (petroglyphs). The American Southwest, however, has got an extra-ordinary range of rock art, some of which is directly linked with the ancient monuments of the Ancestral Puebloans or Hohokam, while some sites are “just” rock art: cliff faces inscribed with enigmatic designs and human or animal outlines.
Rock art has only relatively recently received any attention from archaeologists and scientists, even though it was long believed to be some secret language or communication system. Sometimes described as “prehistoric”, i.e. “before writing”, rock art is nevertheless more writing than art: it was not primarily meant to be visually pleasing, but to impart information, to be read by the person visiting it, on par therefore with Egyptian hieroglyphs. Though now normally seen as a “primitive” communication system, rock art is actually a very complex system – which is why we still do not fully understand it. But what we do understand of it, shows that sociological, but also scientific – mostly astronomical – information was imparted to the observer and that the sites in which rock art can be found are highly significant.
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