Last December in New England & Queensland - a truncated relationship I discussed the way the state border affected life and history. I was reminded of this during a recent visit to Queensland's granite belt.
This area is in fact the northern extension into Queensland of the New England Tablelands, so in terms of physical geography it is similar to areas further south.
In Aboriginal times, the indigenous population treated the area as one. Then after European settlement the Tablelands was an entity until the establishment of Queensland as a separate colony in 1859. From that point, histories diverged.
I really need to look more closely at the history of southern Queensland to trace some of these patterns.