Tucson-based Asarco held a formal dedication ceremony this week — led by President and COO Manuel Ramos — of the expansion of the south mill at the Mission Mine south of town.
The final version of the Rosemont mine environmental impact statement is now online.
Editor’s note: This is the second in a two-part series on the Ajo mining district. To read the first part of this series go online to tinyurl.com/ajomine
The Arizona Game and Fish Department will get about $10 million over a decade from Rosemont Copper for land, water rights and wildlife projects to compensate for impacts of the proposed Rosemont Mine, the department announced Tuesday.
Tombstone, renowned for its gunfights, gambling halls, brothels and bars, was a silver mining town of great wealth during the decade known as “The Roarin’ ’80s” in the 19th century.
Davidson Canyon and Cienega Creek — linchpin issues for many who oppose the Rosemont Mine — aren’t in as big a danger from mine impacts as many people think, the U.S. Forest Service says.
There might still be hope for the popular Bisbee Queen Mine Tour, which seemed to be doomed after the company that owns the mine said it planned to terminate the tour’s operating lease.
In its heyday, the town of Ruby had a large contingent of kids who could play in the outdoors and on this perilous-looking slide.
Tucson resident Tallia Cahoon leads tours of the ghost town. Here she is standing in front of her family's former adobe home in Ruby.
Editor's note: This is the second in a two-part series on the mining town of Ruby. Click here to read the first part.
Phoenix-based Freeport-McMoRan Copper & Gold Inc. is cutting spending by $1.9 billion this year and next and started a process to sell some U.S. energy assets as the world's biggest publicly traded copper miner seeks to reduce its debt.
Blacksmith Frank Powers bought the World's Fair Mine, shown here as it appeared looking south in 1909, for $100 and operated it with his wife, Josephine, in the Patagonia Mountains.
The World's Fair Mine in the summer of 2012, with the foundations of the mill site evident. Metal concentrations in the nearby watershed prompted recent remediation efforts.
A mine that ended up yielding hundreds of thousands of dollars' worth of minerals was purchased for just $100 in 1884.
Federal authorities have fined Tucson-based copper-mining giant Asarco more than $800,000 for failing to permit an audit of the company’s production from its Mission mine near Sahuarita.
A 3-D modeling image of an open-pit mine from Minesight mine-management software made by Tucson-based Mintec Inc., which provides a suite of modeling and mine-planning software.
president of Mintec Inc., which won a President's E-Award for Exports.
Technology that helps miners around the globe figure out when and where to dig has helped a Tucson company land national honors.
As part of training in 2011, UA student Mark Iobst helped guide a drill bit by communicating with the operator (not pictured) of a single-boom jumbo drive drill.
A second straight year of dropping copper prices has done little to slake Southern Arizona's two biggest mining employers' thirst for new workers.