MINING

Arizona is nicknamed “The Copper State” because of the great deposits of copper that Nature has placed here. If Arizona was a country, it would be the second… Full story…


MILLING

Crushing

The haul trucks carry the ore out of the pit along a haulage road with a slope of no more than about…Full story…


SMELTING

The Oxygen Flash Furnace
At the ASARCO copper smelter in Hayden, Arizona, the oxygen flash furnance is initially heated up with natural gas. It becomes so hot that the copper… Full story…


REFINING

The ASARCO Copper Refinery
Imagine a building bigger than ten football fields — so long, it’s said, that the builders had to account for the curvature of the earth when laying out the…Full story…