Thanks Ozlingula,
I am going to post part two and three today - the second part of the Canning and the Gunbarrel back to Uluru. The 1:250,000 are not bad, however the more obscure features are right off the money. I will be posting a trip around the northern Rawlinson Range in Ngaanyatjarra Aboringinal Lands past a place called Circus Rockhole, where Ernest GIles departed for the west when they lost Gibson in 1874. The Circus is a good 5km from where it is on the map. The tracks are often out of date as well, but all in all, when you compare Australia's mapping with that of many other countries, we are not bad.
Cheers for now