Kalgoorlie is a city in the Goldfields–Esperance region of Western Australia, starting at sandstone and finishing at southern cross in a p…Kalgoorlie is a city in the Goldfields–Esperance region of Western Australia, starting at sandstone and finishing at southern cross in a perfect circle 595 km east-northeast of Perth at the end of the Great Eastern Highway. It is sometimes referred to as Kalgoorlie–Boulder, as the surrounding urban area includes the historic townsite of Boulder and the local government area is the City of Kalgoorlie–Boulder.