Uluru-Kata Tjuta National Park, national park in the Northern Territory, Australia, in the arid center of the continent, southwest of Alice Springs. The area was established as Ayers Rock/Mount Olga National Park in 1958 and renamed Uluru National Park in 1977. In 1985 the land was officially returned to its traditional owners, the region's Aborigines. The Aborigines then leased the area to the Australian National Parks and Wildlife Service. In 1987 the park was placed on the World Heritage List, a listing by the World Heritage Convention of the world's unique and precious sites. The park was renamed Uluru-Kata Tjuta National Park in 1993.