The Lower San Pedro River Watershed is one of the largest unfragmented landscapes in Arizona, second only to ... for the land ...

Resolution Copper wants to dig up a massive amount of copper ore beneath Oak Flat inside the Tonto National Forest. And by doing so, a site that some Apaches consider sacred may be destroyed.

Companies with upcoming copper mines in the US could be poised to benefit from tailwinds in the sector, including the new ...

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

Copper retains much of the luster that lent Arizona the unofficial nickname "Copper State," and is king in rural Greenlee County.

The Lower San Pedro River Watershed is one of the largest unfragmented landscapes in Arizona ... above a large copper deposit the company plans to mine at Oak Flat near Superior.