Olympic Dam is not a city, but rather a mine and processing facility located in South Australia. It is operated by BHP and is one of the largest deposits of copper, gold, and uranium in the world. The mine is located 560 kilometers north of Adelaide, near the town of Roxby Downs. While Olympic Dam itself is not recognized as a city, Roxby Downs is a purpose-built town that was established to support the mining operation and provides accommodations and services for the mine workers and their families.