Except for the Old Copper Culture in the Great Lakes area.
Interesting. I knew that North American Indians used copper, but haven't read much about it. Thanks for the links. This stuff fascinates me.
I should have been more specific about what I said. I was talking about Central America and South America earlier, and I was too lazy to type it all out again, so I just said "the Americas". You are correct, "the Americas" includes North America. That's not what I meant, but that is what I typed. %-)