the original mine had 10%copper that would be more than...

the original mine had 10%copper that would be more than visible,if they are drilling into or over the old mine shaft{which is only 5m in diameter}they would be able to see it for sure,when you think about the mine shaft followed one shoot,with that higher grade of copper there has to be the mother load for the veign to run off,gets more and more exciting doesnt it