Company says state mine inspector, not county, regulates its activity.
Possible ramifications loom for Rosemont Mine, Fort Huachuca.
Critics say any mitigation deal could help the mine win approval.
This Q&A with company officials covers Rosemont environmental, business, transportation issues.
2011 wildfire was started by a company employee.
But stock prices jumped for Rosemont Copper's parent company.
A community group and a retired air-pollution scientist filed separate lawsuits Wednesday challenging Arizona’s approval of an air-quality permit for the proposed Rosemont Mine.
The federal government formally announced Friday that it will restart reviews of the proposed Rosemont Mine’s impacts on eight endangered species including the ocelot.
In a decision that both sides are spinning as a victory, the British Columbia Securities Commission says that under certain circumstances, it will put an end to Augusta Resource Corp.’s shareholder rights plan by mid-July.
The takeover battle for the Canadian company that owns the Rosemont Mine site hits a climactic moment in Vancouver, B.C. today (Tuesday, April 29).Officials of Augusta Resource Corp. and Hudbay Minerals Inc. will argue over whether the British Columbian government should put a halt to a shar…
Don’t worry, the Rosemont Mine isn’t likely to pollute the well-loved Davidson Canyon or Cienega Creek southeast of Tucson, says the Arizona Department of Environmental Quality.
The Pima County Board of Supervisors delayed a decision to accept money from Rosemont Copper to compensate for what the company says is the impossibility of mitigating damage from putting water and electric lines through a sensitive riparian area.
After two years of review, the U.S. Army Corps of Engineers still has concerns about Rosemont Copper’s plans to buy land and water rights to compensate for the Rosemont Mine’s impacts on nearly 70 acres of washes and streams, a recent corps letter shows.
Rosemont Copper Co. and a Rosemont ranch hand haven’t yet paid a $514,000 debt they have jointly owed the U.S. Forest Service since August for its expenses fighting a 2011 wildfire started accidentally by the ranch hand.
Saying it’s what the residents want, a Southern Arizona lawmaker wants to let voters in Green Valley, Sahuarita and surrounding areas split from Pima County and move into Santa Cruz County.
County supervisors took another step in their protracted fight with the proposed Rosemont Mine, voting to formally object to the location.
All residents in Pima County are created equal and assume they are equally entitled to their water. This assumption could be jeopardized if Rosemont Mine opponents convince the Tucson City Council to oppose Community Water Company of Green Valley’s pipeline connection.
Last Monday, Coronado National Forest Supervisor Jim Upchurch answered questions at a news conference about the Rosemont Mine.
A rare orchid that lives in the Santa Rita Mountains at the proposed Rosemont Mine site won’t be legally protected by the U.S. Fish and Wildlife Service.
The Rosemont Mine could worsen air quality in Saguaro National Park, disturb cultural resources — including human burial sites — and reduce water flows into Davidson Canyon and Cienega Creek, said the U.S. Forest Service.