There are _a lot_ of places in Australia that are the same but with gold.
You can pretty much drive an hour of out Sydney or Melbourne to some rivers and turn the soil and make up to minimum wage extracting river gold, but you can't run a motor doing it or use any equipment that is larger than what you can carry.
A lot of independent mining is like that - it's borderline low wage work but with the promise of a lotto ticket sprinkled in to keep you working.