Dillalah lies on the western side of the Warrego River, roughly 54 kilometres southwest of Charleville and about 138 kilometres north of Cunnamulla, cut through by the Nimminmulla Creek and its chain of permanent waterholes. That water was the making of it. By 1864 the run was held by W. G. Conn and carried 500 head of cattle, grazing open plains clothed in mulga, saltbush, bluebush, cottonbush and the silvery tussocks of Mitchell grass. In a land of unreliable rain, the permanent waterholes were the difference between a viable run and worthless ground - and Dillalah had them, which is why, again and again, it found a buyer.

Few properties illustrate the restless economics of frontier grazing better than Dillalah. In 1869 it belonged to Russell and Company, who offered it for sale with 2,100 head of cattle. By 1873 it was on the market once more, paired with neighbouring Yarronvale Station; together the two runs covered 500 square miles, divided into thirteen blocks and carrying 2,500 cattle, with a house, kitchen, store and stockyards among the improvements. Just three years later, in 1876, Dillalah alone had swelled to 810 square miles, stocked with 4,200 cattle and 45 horses. When it sold at auction in 1877 it fetched £32,000 including stock - a substantial sum for the era - though the buyer's name was never made public.

By the late 1870s and 1880s the run was larger still and under new management. Frederick Walters was running it in 1878, and he stayed on as manager when the Dillalah Company took ownership in 1883, by which time the property had reached around 1,000 square miles. That same year the Morgan brothers acquired it and soon introduced sheep alongside the cattle - a common shift across the outback as graziers chased the wool that was making other fortunes. Each change of hands rewrote the run's boundaries and its livestock, a reminder that a pastoral lease was never a fixed thing but a living, tradeable enterprise, expanding and contracting with the markets and the seasons.

It is easy to overlook how much the land here speaks an older language. Long before W. G. Conn stocked his first cattle, the waterholes of the Warrego carried Aboriginal names, and Dillalah is one of them - the word for galah in the local tongue, fixed to a particular bend of river where the birds came to water. The naming is a small thing, but it carries weight: the pastoral history that fills the record books, with its sales and stock numbers and pound notes, is laid over a much deeper relationship with this country. The galahs still gather along the Warrego in their pink-breasted thousands, indifferent to leases and auctions, doing what they have done at this waterhole far longer than any station has had a name.

In 1916 the Queensland government stepped in, resuming the homestead portion of the run - a total of 24,000 acres carrying 3,100 cattle - as part of the era's drive to break up the big leases for closer settlement. The state paid £13,000, with another £10,000 earmarked for future improvements. The land, much reduced, carried on as working country. Its most memorable modern chapter came in 2010, when 200 millimetres of rain fell over just two days and the Balonne, Warrego and Paroo rivers all ran in full flood at once. The owner, Brock Hindmarsh, looked forward to a rare good season - the boom side of the boom-and-bust cycle that has governed Dillalah since the first cattle drank at its waterhole.