Collection: Southern Arizona mining coverage
Read more on mining in Southern Arizona from the Arizona Daily Star.
Residents worry huge development plans could turn Rio Rico into mining townFor Star subscribers: A prominent Santa Cruz County landowner has proposed a major, mixed-use project along both sides of Interstate 19 in Rio Rico, but residents are pushing back.
How much critical habitat for jaguars will be eliminated in Southern Arizona remains unclear after a court ruled the U.S. erroneously protected land including the proposed Rosemont Mine site.
For Star subscribers: Eight environmental groups contend the Forest Service failed to consider cumulative effects of several mining projects south of Tucson, especially on endangered species.
For Star subscribers: In a victory for future mining in the Santa Rita Mountains, an Appeals Court tossed out a U.S. decision protecting hundreds of thousands of acres in the range south of Tucson.
Southern Arizona could see major new mines near Mammoth and Patagonia under separate proposals now drawing scrutiny from conservationists and federal regulators.
For Star subscribers: Western senators introduced legislation Tuesday to override federal court rulings that blocked the Rosemont Mine near Tucson and a mine in Nevada from construction.
For Star subscribers: The action could have ramifications for copper mining in the Santa Rita Mountains southeast of Tucson, but the legal authority is unclear.
Latest decision appears to restore a 2021 federal finding that the washes at the Rosemont site, in mountains south of Tucson, aren't subject to regulation under the Clean Water Act.
Heavy-equipment giant Caterpillar is testing electric haul trucks and renewable energy and storage for mine sites at its Tucson Proving Ground.
For Star subscribers: Action by two federal agencies raise questions about how long Hudbay can keep grading on a 4,500-acre site on the west slope of the Santa Ritas.
For Star subscribers: Hudbay Minerals now plans to first mine private land it owns in the Santa Ritas, but to still try to find a legal way to leave wastes on national forest land in the Rosemont area later.
Organizations would be allowed to step in and clean up long-abandoned mines without fear of the legal liability that could be attached to their now-absent owners.
For Star subscribers: Rep. Raúl Grijalva, House Natural Resources Committee chair, wants feds to consider halting mining company's grading for the Copper World project as a Clean Water Act violation. But the company says there's no federal determination any washes on site are worthy of U.S. regulation.
A federal judge dismissed a bid by three tribes to stop the ongoing work of Hudbay Minerals Inc. in the Santa Rita Mountains south of Tucson.
The 9th Circuit Court of Appeals agrees with Tucson judge's finding that the mining company can't dump waste rock on Forest Service land.
For Star subscribers: Hudbay Minerals Inc. says the permit is not needed to keep clearing land on the west slope of the Santa Rita Mountains.
Three tribes want a federal judge to stop Hudbay Minerals Inc.'s grading and land-clearing on the west slope of the range south of Tucson.
