Copper Mining Research - Tucson

Today I visited a client and learned the ins and outs of their office, and spent a good bit of time learning about copper mining. After learning that a tire on a dump truck that carries 300,000 tons of dirt cost over $40,000 per tire, and each truck has 6 tires that need replaced twice a year--I am going to take the next couple of days to brainstorm how to change careers. LOL