In this remote part of Australia, you can find the official survey marker that indicated the meeting place of three Australian states: Queensland, New South Wales, and South Australia. The marker was placed in September 1880, and is named for surveyor John Brewer Cameron, who spent two years marking the border between New South Wales and Queensland. As of the 2016 census, the town of Cameron Corner had a population of five people. This location is a good place to appreciate the scale of the dingo fence, a massive structure that stretches 5,614 kilometers…