Another day another tour. Here we go, more then you ever wanted to know about a copper mine.
The Mission Mine is just north of Tucson, and they have a very nice one hour bus and walking tour.
The mine is a quarter mile deep, 2 miles north to south and 1 3/4 miles east to west. About two thirds of the US copper is milled at this location.
I believe our guide told us the truck is 240 tons. The tires on this thing cost $54,000 each and will only last on the average of 6 months. The truck is dumping into a grinder, and will go up to conveyor belt.
From here it goes into the plant. The ore is ground into a powder so the copper minerals can be separated. It is then trucked to Phoenix to be processed into a copper form. Okay have you had enough?