Nine Arizona companies had enough revenue to make the 2025 Fortune 500. Copper-miner Freeport-McMoRan leads the Arizona ...

The Morenci Mine is the largest copper mine in the US and one of the biggest in the world. As of 2007, operations ran around ...

KGUN 9's Pat Parris explores the 'Legend of the Iron Door Mine,' and tells us what makes this legend Absolutely Arizona.