OK, usually I give you leads that you can use to make a little money if you study the detail, but today I am tossing you a clue to keep you from losing money. There is no doubt that you can get scammed if you buy a claim or even invest into a larger commercial mine.
This document was put together by the Arizona Department of Mines and Minerals to help people avoid getting scammed.
It also has some clues about where you might want to go prospecting.
Check it out!