Morenci copper mine expansion one of big mining stories of 2014

One of the biggest Arizona mining stories of 2014 was the completion of Freeport's expansion at the giant Morenci mine.  An easy way to appreciate its significance are these excerpts below from pages 10 and 13 of a Freeport presentation last November.

Morenci's production estimate for 2014 makes it the 4th biggest copper mine in the world, and largest in the U.S.

[Figures from Freeport McMoRan Copper & Gold]