The Olgas, also known as Kata Tjuta or Mount Olga, are large rock formations located in Uluru-Kata Tjuta National Park, which houses the famous Ayers Rock as well. These rock formations are a remarkable group of 36 domes, made from an mixture of granite, basalt, and mudstone. Both Ayers Rock and the Olgas are located in the Northern Territory of Australia, sometimes referred to as Australia's "Red Centre."
Journeys trips that include the Olgas:
Information based on http://en.wikipedia.org/wiki/Olgas