For those who may want a little help with these numbers, the typical open pit copper mine in Arizona produces less than 1/2 percent copper per ton. These others are, of course, massive but low grade deposits.

While samples mentioned here are extremely high grade, they are not representative of grades to be had from bulk tonnage extraction. However, they do suggest the possibility, even the likelyness of very high grade ore, perhaps exceeding what came out of Bisbee for, what, 110 years?

VP