The property currently occupies an area of 5,540 square kilometres (2,139 sq mi) and has a carrying capacity of 8,500 head of cattle. The property is currently owned by S.Kidman & Co. Ltd. It is the site of the monument, Sidney Kidman's Tree of Knowledge, the coolibah tree which Kidman camped under when contemplating the development of his pastoral empire. Glengyle and other leases in the channel country, he realised, would be important acquisitions to link his properties in the Northern Territory to markets further south while still providing feed and water.
The Georgina River and other tributaries such as Eyre Creek run through the middle of the property and mostly carries water down from the north during the wet season. Water can take as long as three months to travel 35 kilometres (22 mi) across a paddock, called Bunkhole, as it must fill two lakes. The lakes, named Koolya and Miria, are each circular and about 50 square kilometres (19 sq mi) in area. Further downstream lies Lake Machattie which also usually fills then the floodwaters spread out across the maze of lignum lines black soil channels. About one third of the property is flood plain which with adequate water is well vegetated by Cooper clover in winter and native sorghum in summer, another third is sandhill country with the remaining third made up of gibber plain that supports Mitchell grass following summer rains.
The station was established in 1876 by Duncan Macgregor one of the first in the region along with Annandale, Kaliduwarry, and Sandringham Stations. Macgregor held on to the property for the next 20 years and also acquired nearby Cacory Station.
William Buchanan acquired the 1,000 square miles (2,590 km2) station in 1907. He intended to stock up from his Wave Hill Station in the Northern Territory, 4,000 head of cattle were immediately dispatched with Glengyle to be in good condition with plenty of feed and water.
Between 1914 and 1916 the area was struck by drought, about 10,000 cattle died on the station during this time. Kidman lost over 75,000 head of stock on all of his properties through the channel country including Diamantina Lakes, Durham Downs, Innamincka and Sandringham Stations. Suffering financially, Kidman sold the property in 1918.
The manager of the station, Albert Edwards, estimated the area of the holding in 1921 was 1,000 square miles (2,590 km2) with a total area of 7,000 square miles (18,130 km2) including outstations. The property was carrying 25,000 head of cattle and 1,000 horses.
In 1929 a bore was sunk at Glengyle to a depth of 2,380 feet (725 m) before striking a good flow of artesian water The flow rate was measured at 750,000 imperial gallons (3 ML) per day and cost Kidman A£6,000.
Airmail delivery to remote properties in outback South Australia, New South Wales and Queensland commenced in 1949. Glengyle along with other remote properties including Mungerannie, Clifton Hills, Mulka, Davenport Downs, Morney Plains, Mount Leonard, Durrie, Cordillo Downs, Tanbar, Durham Downs, Nappa Merrie, Lake Pure and Naryilco were also on the route.
The Georgina River flooded in 1950 and again in 1953 following heavy rain events further north. The 1953 flood was 6 inches (152 mm) higher at Glengyle compared to the 1950 event. The Diamantina River was also in flood and the waters were expected to make it to Lake Eyre.
Glengyle is the end of the world's longest mail run that is about a 2,000 kilometres (1,243 mi) round trip. The run starts at Port Augusta and finishes at Glengyle an includes other properties such as Anna Creek and Durrie Stations.
The station, and much of the channel country, resembled an inland sea in March 2011 when flood waters flowed down from the north following Cyclone Yasi. The floodwater were over 20 kilometres (12 mi) wide down the creek channels and were over 1.5 feet (0.5 m) higher than the floods recorded in 2009, the highest seen before, that filled Lake Eyre.
- "Glengyle". S.Kidman & Co. Ltd. 2012. Retrieved 3 May 2013.
- "Sidney Kidman's Tree of Knowledge". Monument Australia. 2012. Retrieved 4 May 2013.
- Fiona Lake (October 2007). "Fat of the Land". R.M. Williams Outback. Retrieved 3 May 2013.
- S.E. Pearson (1937). "The South West Corner of Queensland" (PDF). University of Queensland. Retrieved 3 May 2013.
- "Season and farm". The Chronicle. Adelaide: National Library of Australia. 28 September 1907. p. 8. Retrieved 3 May 2013.
- "Telegrams". The Northern Miner. Charters Towers, Queensland: National Library of Australia. 28 May 1912. p. 5. Retrieved 3 May 2013.
- Jill Bowen (2010). Kidman The Forgotten King. HarperCollins. ISBN 9780730445173.
- "North South railway". The Register. Adelaide: National Library of Australia. 2 November 1921. p. 7. Retrieved 3 May 2013.
- "Deep artesian bore at Glengyle". The Register News-Pictorial. Adelaide: National Library of Australia. 14 December 1929. p. 26. Retrieved 3 May 2013.
- "Airmail Service For Outback Stations Commences Next Week". Barrier Daily Truth. Broken Hill, New South Wales: National Library of Australia. 15 April 1949. p. 1. Retrieved 23 August 2014.
- "Georgina River Rising". The Advertiser. Adelaide: National Library of Australia. 6 March 1953. p. 19. Retrieved 3 May 2013.
- "The world's longest mail run". Australian Broadcasting Corporation. 9 April 2009. Retrieved 3 May 2013.
- "Floods 20 kilometres wide across the Channel Country". Australian Broadcasting Corporation. 8 March 2011. Retrieved 3 May 2013.
- "Drought conditions tighten grip on parts of Qld, NSW and SA". Australian Broadcasting Corporation. 4 March 2013. Retrieved 26 June 2013.