Deep in Australia's outback, weekend ceremonies and celebrations mark 40 years since a symbolic high point for Aboriginal land rights.

The handing back of the great rock Uluru and Kata Tjuta to Traditional Owners in 1985 recognised the spiritual connection of the sites to the local Anangu people.

Also known as Ayers Rock, the anniversary of the sites' return was marked by King Charles and Anangu representatives at Australia House in London on October 16.

Prime Minister Anthony Albanese will join anniversary events in the Uluru-Kata Tjuta National Park and deliver a speech on Saturday.

He will reflect on the "deep honour" of being the first prime minister to attend a handback anniversary in his address.

"Forty years ago, after decades of exclusion, the Anangu's rightful relationship wi

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