The first ancestors of Aboriginal Australians are believed to have arrived in Australia as early as 60,000 years ago, and evidence of Aboriginal art in Australia can be traced back at least 30,000 years. Examples of ancient Aboriginal rock artworks can be found throughout the continent. Notable examples can be found in national parks, such as those of the UNESCO listed sites at Uluru and Kakadu National Park in the Northern Territory, and the Bradshaw rock paintings in the Kimberley region of Western Australia. Rock art can also be found within protected parks in urban areas such as Ku-ring-gai Chase National Park in Sydney. The Sydney rock engravings are approximately 5000 to 200 years old. Murujuga in Western Australia has the Friends of Australian Rock Art advocating its preservation, and the numerous engravings there were heritage listed in 2007.
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