Mannahill is a small pastoral and travellers service centre on the Barrier Highway and Indian-Pacific railway line 44 klm north-east of
YuntaThe township was originally surveyed in the mid-1880s as a water-supply and maintenance point on the
Peterborough to
Cockburn railway line completed in 1887. There had been settlement before that time with Mannahill being on a former stock route from the Barrier Ranges in New South Wales to the then rail head at
Terowie. It also supported early gold mining activity at both Mannahill itself and at Wadnaminga to the south.