It could be anything Glen....even just a topographical feature caused by erosion. The only way to tell if that was a meteor crater would be to study its geology. That may mean drilling the structure to look for telltale signs it was a crater. If it is a crater, it's quite big. Is it listed anywhere as a crater/possible crater??. What do the guys at UNE think it is??.
It may not be a crater, if you zoom out you can clearly see its part of a larger mountain range, where the land has been pushed up from below. Also the "smooth" appearance is probably from water drainage, you can see below where the water table drains out from.
Just took a look at it by zooming out. I think it's just part of the topography, Glen. Two spurs that come in close together....it looks unusual, but that's all I believe it is. It's very suggestive, and you can go take a look for yourself, but you may not find anything.
