Southern Cross is a town in Western Australia, 371 kilometres east of state capital Perth on the Great Eastern Highway. It was founded in 1…Southern Cross is a town in Western Australia, 371 kilometres east of state capital Perth on the Great Eastern Highway. It was founded in 1888 after gold prospectors Richard Greaves and Ted Paine during their October 1887 expedition successfully found gold, and gazetted in 1890. It is the major town and administrative centre of the Shire of Yilgarn. At the 2016 census, Southern Cross had a population of 680.