Unlike the world's great metropolitan centres, ghost towns don't usually enter sister-city partnerships.
But in a paddock north of Adelaide, at a place called Baker's Flat, there are traces of a village that is, in some ways, an unacknowledged sibling to dozens of similarly half-forgotten hamlets on the other side of the Earth.
"You look at it now and it's basically a field," said Irish-Australian archaeologist Susan Arthure.
