ROAD- BRISBANE TO GOONDIWINDI

Hi Straddie

The preferred route of native Goondiwindi people is via Millmerran. The roads west of Toowoomba are flat and open with 110Km limit from Pittsworth.

Have a relative who does this trip every day in a B-Double full of fuel.

Redeye

Sounds like you are talking about Hieffer Creek rd. Go just past Gatton and then take a left towards Clifton.

This road is very windy but I do believe the gradient is much less than Cunninghams or Toowoomba range.

Half way through the road is a rest area at the bridge which is good for a free camp overnight if required.

There is only three bitumen roads over the range (oops, Mary's falls I think is now bitumen too, but steeper than Cunninghams Gap.), Cunningsham Gap, Heiffer Ck, and Toowoomba Range. Blackbutt further north not worth considering for Goondiwindi.
Heiffer creek less grade, but more turns, so prefer Toowoomba and go via Millmerin. Find with the Toowoomba range it is steep near the top and with a load may be down to 2nd in the pajero, but it is only short.
Via Millmerin doesn't have the hills west of Warwick, so is a flatter run, and I find it about 15 minutes quicker Brisbane to Goondiwindi.

Heiffer Creek Road is narrow and winding in parts. Trucks use it and they aren't slow so beware of blind corners. I have towed my van up there a couple of times, and also stayed at the Heiffer Creek Rest area. We prefer the Toowoomba climb at the moment, it is steep but also short so the hard climb is not a long one.