A road labelled as Nonning Road and then as Hiltaba Road passes through the county in an east-west direction on its way from Iron Knob in the east. Other roads passing through the county include the Mail Run Road, which runs from Nonning Road in the east to Hiltaba Road in the west via the locality of Thurlga, Buckleboo Road which runs from the Eyre Highway in the south to Mail Run Road in the north, Yardea Road which runs from the Eyre Highway in the south via the locality of Gawler Ranges to Hiltaba Road in the north, and Skull Camp Tank Road which runs from the junction of Nonning and Hiltaba Roads towards Kingoonya in the north.
The County of Bosanquet was proclaimed on 23 October 1913 and was named after Sir Day Hort Bosanquet who was the Governor of South Australia from 18 February 1909 to 22 March 1914.
It was proclaimed on 23 October 1913. It covers an area of 260 square kilometres (100 sq mi) and is named after Pildappa Hill (Pildappa Rock), a feature located within the hundred and whose name is derived from a "native word for 'rockwater'". Its extent is almost entirely occupied by the gazetted locality of Minnipa, with a portion of its south-east corner being within the gazetted locality of Yaninee.
^ Bice, John G. (23 October 1913). "NEW COUNTY AND NEW HUNDREDS"(PDF). South Australian Government Gazette. 1913. Government of South Australia: 1055–1056. Retrieved 12 December 2016.
^ "HUNDRED MAP Series Index Map"(PDF). Department of Environment and Heritage, Government of South Australia. December 2008. Retrieved 16 November 2015.
^"Outback Road Names Sheet 3"(PDF). Government of South Australia. 21 January 2014. Rack Plan 768. Archived from the original(PDF) on 16 September 2014. Retrieved 11 December 2016.