Marion Downs sits 56 kilometres south-west of Boulia in the Channel Country, and few stations in Australia are so thoroughly defined by water and its absence. Four rivers run through or beside it: the Georgina, the Burke, the Hamilton, and the Mulligan. The Burke carries the name of the explorer Robert O'Hara Burke, whose doomed expedition passed just south of present-day Boulia in 1861. The land shifts from floodplain to open rolling downs of Mitchell and Flinders grass, then surrenders along its western boundary to the red dunes of the Simpson Desert. Run today with the Herbert Downs outstation, the combined holding covers 12,460 square kilometres and carries around 15,000 head of cattle. It is owned now by the North Australian Pastoral Company, but its roots reach back to 1877 and the country of the Rungarungawa people, taken as pastoralists pushed west from the Diamantina headwaters.

The records of Marion Downs read, in places, like a coroner's ledger. In 1891 the station manager, George McLeod, took his own life by cutting his throat. In 1920 a boundary rider named Andrew Johnstone, working at neighbouring Coorabulka, went missing; a stockman found his body months later along the Merrdiderri Channel, his bones scattered by dingoes. In 1932 a South Australian man named Daniel Richardson died of thirst on the property. And in 1953, when heavy rain flooded Marion Downs and the runs around it, employees trapped at the station fell ill with dysentery, most likely from drinking contaminated water. These were not statistics to the people who knew them. They were stockmen and managers and travellers, drawn to remote work in hard country, and the same land that built fortunes in good seasons took lives in bad ones with no apparent malice and no mercy.

Marion Downs belongs to the heroic age of Australian pastoralism, the era when men assembled empires of grass across the inland. By the early 1890s the MacKinnon brothers, Donald and James, owned it, still trucking bullocks south to markets in Adelaide, Rockhampton and Sydney. By 1908 it carried 10,000 head; by 1921, after expanding to some 4,300 square miles, it ran 20,000 cattle and 300 horses. This was the same outback world that made Sidney Kidman, the legendary Cattle King who stitched together a chain of runs across the dry heart of the continent in those very decades. Marion Downs was a piece of that vast cattle frontier, even if it never carried Kidman's brand. The North Australian Pastoral Company bought it in 1934, after the lean years that followed the First World War, a market slump and a long drought had emptied the paddocks and left the place in caretakers' hands.

In 2010 the Georgina and Burke Rivers both came down in flood after good rains to the north. Robert Jansen, then managing Marion Downs, described the water with a single, telling word: handy. To an outsider, a flooded river sounds like disaster. To a Channel Country grazier, it means waterholes filling, feed coming on, and a cushion against the next drought. The whole logic of survival out here is inverted from the way wetter country thinks. Jansen and Stephen Bryce, who managed Glenormiston next door, had since 2007 jointly looked after the Mulligan River Nature Reserve straddling both properties, a sign of how working stations and conservation now share this fragile arid land. The flood that menaces is also the flood that sustains. On Marion Downs, learning to tell the difference has always been the whole job.