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U.S. Rock Art in the Twenty-first Century: Problems and Prospects

Petroglyphs from Willow Springs in northern Arizona. These engravings, made by Hopi Indians during ritual pilgrimages, depict the individual clan symbols of the pilgrims. Not all North American rock art is shamanistic in origin. This is especially true of rock art made by farming tribes like the Hopi. Photo: David S. Whitley.