More Mining Stories

Regulate Reopened Uranium Mines, Group Asks Government

Environmental organization wants long-dormant operations scrutinized, including near Canyon.

AZ WEEK: Is Mine Waste Spill Threatening Arizona's Water?

Million of gallons of waste, including arsenic and lead, surged into tributaries of Colorado River.

Navajo Farmers Lose Irrigation after Mine Waste Spill

Tribal authority has shut down supply for the rest of this season.

Mine Waste Not Expected to Affect Arizona Water Supply

3 million gallons of contamination dumped into waterway that eventually reaches Colorado River.

Opposition Mounts to Proposed Resolution Copper Mine

Critics of the mine arrive in Washington DC after cross-country trek

Environmental Groups Fight Grand Canyon Uranium Mine

Site south of national park gets judge's approval under 1872 federal mining law.

Report: Colorado River Most Endangered River in US

Three human-caused sources listed as dangerous for river that flows through Arizona.

Rosemont Copper Mine Hits Roadblock, Air Pollution Permit Overturned

Maricopa County Superior Court says AzDEQ acted “contrary to law”

METRO WEEK: Gem Shows Big Contributors to Economy, UA Research

$120 million economic impact, international research collaboration opportunities from big winter event.

State Issues Its OKs on Rosemont Water Quality

Decision now moves to federal level - Forest Service and Army Corps of Engineers.

Will We Soon be Mining the Moon?

UA Scientists say private concerns are seeking ways to get there, but the practicality of it may be far-fetched.

Supply-Demand Driving Arizona Turquoise Prices

Change in mining regulations abd techniques, growth of Chinese middle class putting pressure on availability.

Tucson Electric Power Says It Won't Buy Coal Mine

Environmentalists urge utility to emphasize solar, other clean energy sources ahead of fossil fuels.

Orange Sludge Spill from Abandoned Mines Threatening Patagonia Lake

Local environmental officials say Asarco's cleanup efforts not good enough, cite company.

Mexican Copper Mine Contamination Spills Into San Pedro River

Authorities in northern Mexico issue a binational alert over mine water leakage in creeks, streams.

Navajo Nation Gets $1B for Uranium Mines Cleanup

Money part of a $5.15B settlement that the federal government reached with a petroleum company to blame with contaminated sites nationwide.

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