Opal capital Coober Pedy 'on knife-edge' as desert town faces big water problem
By Patrick Martin, ABC North and West SA
06 Mar, 2019
If there is one thing more precious than opal at Coober Pedy, it is water.
In the middle of the South Australian desert, 850 kilometres from Adelaide, Coober Pedy is often referred to as the opal capital of the world — but it uniqueness extends past its mining of Australia's national gem stone...