Kata Tjuta, sometimes written Tjuṯa (Kata Joota), and also known as Mount Olga (or colloquially as The Olgas), are a group of large domed rock formation of bornhardts located in the Uluru-Kata Tjuta National Park.
The 36 domes that make up Kata Tjuta cover an area of 21.68 km2, are composed of conglomerate, a sedimentary rock consisting of cobbles and boulders of varying rock types including granite and basalt, cemented by a matrix of sandstone.
The highest point, Mount Olga, is 1,066 m above sea level, or approximately 546 m above the surrounding plain (198 m higher than Uluru).
Kata Tjuta and Uluru form the two major landmarks within the Uluru-Kata Tjuta National Park.
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