Rio Tinto’s Nuton venture is using microbes to remove copper from ores that are otherwise uneconomical to mine.

Arizona’s water laws are badly outdated on multiple fronts, so changes to federal laws that affect the safety and security of our vanishing water supplies should concern all Arizonans and deserve ...

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

One of the world’s most productive copper mines is also one of Arizona’s most reliable sources of Rocky Mountain bighorn ...

Congresswoman Adelita Grijalva introduced her first bill, the Save Oak Flat from Foreign Mining Act, aiming to protect a ...

BHP partners with Ivanhoe Electric to explore copper and other critical minerals in Arizona, New Mexico, and Utah. BHP will contribute $15 million over three years, and Ivanhoe Electric will provide ...

President Joe Biden recently signed a bipartisan bill aimed at cleaning up abandoned mines around the country, including those in Arizona. Senator Mark Kelly was among three senators who created the ...

A “Hold” Rating for Shares of Arizona Metals Corp. In this analysis, we reiterate our “Hold” rating on the US-listed shares of Arizona Metals Corp. (OTCQX:AZMCF). This rating is consistent with our ...

As the mining industry continues to grow and evolve, companies are working with Tucson-area schools to fill what have been historically hard-to-fill positions. “We’re at a pinch point. It is more ...

Arizona mining districts originated prior to the formation of Arizona as a territory in 1863. Except for having to pay tribute to a monarch, these self-governing regulations followed the tradition of ...