Summary: Petroglyphs and pictographs in a small cave along the Barker Dam Trail in Joshua Tree National Park.

Along the Barker Dam Trail in Joshua Tree National Park are the Barker Dam Petroglyphs. The American Indian rock 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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Aboriginal Sites by National Park

The Greater Blue Mountains World Heritage Area protects over 3,000 known Aboriginal heritage sites, and many more which are yet to be recorded. This area includes the Blue Mountains National Park, Gardens of Stone, Wollemi National Park and Yengo National Park.
Located to the north-west of Sydney, just south of the Dharug and Yengo National Parks, Maroota has a high concentration of (known) Aboriginal sites. Many more Aboriginal heritage sites are located in the Marramarra National Park. The original inhabitants of the area were the Darug people.
Over a hundred Aboriginal sites have been recorded in the Hornsby region, with many of these in the Berowra Valley National Park and around the suburb of Berowra.