Arizona Sonoran Copper said it plans to begin talks with Rio Tinto-backed Nuton to end a partnership agreement early and fully take on the project in Arizona.

A global metals selloff dragged down shares in companies ranging from Arizona copper miners to the world's largest gold prod ...

An announcement from Magnum Mining and Exploration Limited ( ($AU:MGU) ) is now available. Magnum Mining and Exploration has completed an ...

Gunnison Copper (TSX: GCU; OTCQB: GCUMF) produced copper using Rio Tinto’s (NYSE, LSE, ASX: RIO) Nuton sulphide-leaching ...

Spanning over 60,000 acres, the Morenci copper mine in eastern Arizona — one of the largest-open-pit mines in the world — produces hundreds of millions of tons of copper ore each year. But the steep ...

A U.S. appeals court has temporarily blocked the transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest copper deposits in North America.

Copper is on course for its biggest annual gain since 2009 and articles about the metal were read more than 2.5 million times ...

In the midst of a bleak economy and big losses in construction jobs, Arizona's copper star is shining brightly. Employment in the state's copper industry increased 25 percent last year, according to ...

The federal appeals court temporarily blocked the land swap right as a public comment period wrapped up. A federal appeals court Monday temporarily blocked a land exchange in Arizona just hours before ...

Finding other people on the Arizona Trail is energizing, but people are also changing the trail along its final miles.

A U.S. appeals court has put the brakes on the transfer of federal forest land in Arizona to a company that plans to mine one of the largest copper deposits in North America. A U.S. appeals court has ...