[3] The Cunningham Highway coming from Tarome to the east crosses the range at Cunningham's Gap (elevation 790 metres) on the eastern boundary of the locality and then runs from east to west through the locality running roughly parallel and south of Gap Creek falling to 590 metres elevation on the western boundary.

The Darling Downs was seen as having great agricultural potential but initial access to the area was via an overland route through inland New South Wales, which would create an unreasonable time and cost barrier for trade.

On 11 June 1827, Allan Cunningham approaching from the Darling Downs identified a possible dray route (later known as Spicer's Gap) across the range.

[4] As the Darling Downs was being settled, finding a dray route across the range became increasingly important.

This led to the establishment of Spicers Gap Road (modern spelling omits the apostrophe) over the range.

[4] Spicers Gap Road required extensive expenditure on maintenance and with the 1871 opening of the Southern railway line from Warwick (the major town on the Darling Downs) to Toowoomba and then by the Main Line railway to Brisbane, Spicers Gap Road was virtually abandoned as rail transport was superior to drays.