In 1950, a huge open-pit copper mine opened beside a small town in Arizona. As the mine expanded over the next two decades, ...

A Canadian company wants to reopen the San Manuel copper mine more than 20 years after it closed northeast of Tucson.Five takeaways from Sunday's story about a Canadian company's plan ...

It’s also one of 60 critical minerals essential to U.S. economic, energy and national security applications, but it has ...

The closed mine in San Manuel could reopen under a deal announced by a Canadian company that also wants to develop a major ...

Arizona's mining industry seeks tech-savvy workers, and a new scholarship from Freeport-McMoRan aims to bridge the gap.

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 ...

ASU and Freeport are building robots and sensors to speed copper sorting and shrink processing waste in Arizona.

Hudbay Minerals (TSX:HBM) has agreed to acquire Arizona Sonoran Copper Company in an all share transaction. The deal will combine Arizona Sonoran’s Cactus project with Hudbay’s Copper World ...

Arizona Sonoran Copper shares surged Monday morning after Hudbay Minerals said it would acquire the company in full. Shares of Arizona Sonoran rose 21% to 8.69 Canadian dollars ($6.37), hitting a ...

Add Yahoo as a preferred source to see more of our stories on Google. A rainbow arches over Oak Flat, an Apache site, in October 2023. (Molly Peters) President Trump this week threw his full support ...

Courtland, Arizona was founded in 1908 after copper was discovered in the surrounding hills. Within a few years the town grew rapidly, adding a movie theater, stores, railroads, and a population of ...

TUCSON, Ariz., Dec. 4, 2025 /PRNewswire/ -- A fourth annual survey, released in partnership by the Arizona Mining Association and the University of Arizona School of Mining Engineering & Mineral ...