Upper Peninsula of Michigan. There's still copper. It just couldn't compete with the open pit mines, overseas, etc., at subsequently depressed prices. Now th

Upper Peninsula of Michigan. There's still copper. It just couldn't compete with the open pit mines, overseas, etc., at subsequently depressed prices. Now that copper prices have risen, in recent years (not sure about at the moment), there's been intermittent talk of starting some of the UP mining back up. Probably won't happen -- my guess. Too much investment, given current global volatility. And the relevant people are largely gone. More recently, foreign paper products production has been inflicting a further hit. The local town near where I stay lost its paper mill (for paperboard products) a few years ago. As one example.