Along the Barker Dam Trail in Joshua Tree National Park are the Barker Dam Petroglyphs. The American Indian rock art.is in a small cave with a natural arch.
The Barker Dam Petroglyph Cave includes both petroglyphs (images carved in rock)…
…and pictographs (images painted with mineral paints).
The art is thought to be about 2,000 years old; many of the figures were enhanced or overpainted in bright colors by a Hollywood film crew in the 1940s and 1950s.
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