Discovered in Arizona’s Copper Triangle, Oak Flat is home to one of the richest copper deposits in the world. But the battle ...

Oak Flat — an area east of the Valley — may soon be home to a massive copper mine. It holds cultural and spiritual ...

In recent weeks, you've likely heard a lot about rare-earth substances with hard-to-pronounce names, but experts warn that ...

Feb. 10, 2016. (AP Photo/Jim Mone, File) This file photo taken June 15, 2015, shows the Resolution Copper Mining area Shaft #9, right, and Shaft #10, left, that awaits the expansion go ahead in ...

Southern Arizona's proposed Copper World copper-molybdenum mine, formerly known as the Rosemont mine, which has been delayed by a court ruling that limited how mining companies can discard ...

President Donald Trump ordered the Commerce Secretary to investigate the security risks of importing copper ... mine, which would obliterate Oak Flat and possibly wreak havoc with central Arizona ...

President Donald Trump ordered the Commerce Secretary to investigate the security risks of importing copper and look ... The group argues the mine, which would obliterate Oak Flat and possibly wreak ...

Are copper mines 'destroying all the places that give life'? Arizona’s and America’s continuing drive ... Oak Flat, a scrubby expanse of boulders and ridges east of Superior on metro Phoenix’s eastern ...

Are copper mines 'destroying all the places that give life'? Arizona’s and America’s ... a scrubby expanse of boulders and ridges east of Superior on metro Phoenix’s eastern shoulder ...