THE OPAL SEA
ELSEWHERE IN this issue of Camper we took a look at the great advantages bestowed on this nation by the once great Eromanga Sea, which a hundred million years ago flooded across one fifth of the landscape of modern Australia. It left behind a unique sequence of sandstones and shales which have formed a great bowl to capture rainfall along the wetter northern and eastern margins of the continent and deliver it to the now parched and dry centre.
That flow of water has, over the past thousands of years, sustained small tribes of aboriginal nomads and, in
