The mines we find Kelley, (boy it's hard to type a name I'm so familiar with, in a different way) are from the gold rushes in the 1900's. About the same time as gold was being discovered in California and Alaska, there were the same type of gold rushes here. In fact, a lot of the miners over there came here in their thousands, including Chinese directly from China. The main rushes here in Queensland were at the Palmer river way up north and Gympie (1867) about an hour (60 miles) south of here. There was a working mine operating in the middle of the town until recently, it is now a museum.
http://www.walkabout.com.au/locations/QLDGympie.shtml
The history books tell us that there were so many miners that, as soon as the news of a new find got out, all the miners would set out on foot or by horse/wagon from one site for the next. Sometimes they would find a nugget as they walked and then a new rush would start. Local maps have many abandoned mine sites on them and I wonder how they found these places in the first place, they are so far off the beaten track, on the way to nowhere. The mines we saw were on the sides of steep hills which led down to the creeks. Apparently they lived in the mines while they dug them out. I would have been afraid of the water which would have filled them when it rained heavily, as it does here during the summer, along with the snakes which are very mobile in the hot weather. The mines would have provided a cool place to work, if nothing else.
We have been fortunate so far Kelley, not to have met any snakes, touch wood.
The places we go to are on private property which is used for grazing cattle because it's no good for anything else. If you go to this site you will see a list of the different types of cattle bred in Queensland:-
http://www2.dpi.qld.gov.au/beef/2222.html
You will probably understand the information much better than I do.
I hope this answers some of your questions Kelley, if not, ask away.
Sheila.