One of the world’s most productive copper mines is also one of Arizona’s most reliable sources of Rocky Mountain bighorn sheep. The bighorns are not shy about entering the Freeport McMoRan open-pit ...

Freeport-McMoRan Copper & Gold is planning to hire hundreds of workers as it increases production and restarts projects in Arizona. The mining company laid off about 1,500 Arizona workers in 2008 and ...

CLIFTON – As economies boom on the other side of the world, echoes resound in the scrubland around this desert town — and in the makeshift homes of families like Stacie and Tim Boardman and their ...

Arizona is the only state in the country with an elected state mine inspector. Right now, that person is Les Presmyk.