When I was in Hawaii last year I stopped at a small roadside stand where a guy in his fifties was selling fresh roasted coffee beans and macadamia nuts; I chatted with him for a while and turns out he was from Concord, CA and had left 20 years ago after being fed up with the California rat race - he bought a few acres (which turns out it's much cheaper than CA land) on the big Island and now grows his own Coffee, macadamia, and pineapples. This guy was one of the happiest guys I ever met, truly happy, content with his life in every way. I have spent time with some very affluent people as well whose lives revolved around making a buck, they have nice things but you can just see in their faces how miserable they are. In guess my point is a simple life is often the best life - people who chase the dollar their whole life typically end up miserable. If mining is what makes you happy, go for it! There are no take backs or re-do's in life. Working at a big mine like you linked is physically strenuous work in general, however, it is good honest work. Also, it'll put you smack dab in the middle of some beautiful country where you can enjoy the outdoors and life without being policed like you would in California.