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PolyMet copper mine in northeastern Minn. gets cautious ...

After four years and $22 million, PolyMet Mining's proposed copper mine in northeastern Minnesota cleared a major hurdle when the U.S. Environmental Protection Agency gave plans for the ...

Copper-Nickel Studies and Non-ferrous Mining - Minnesota ...

The 10 biggest copper mines in the world - Mining Technology

Save the Boundary Waters

The Boundary Waters Canoe Area Wilderness is threatened by sulfide-ore copper mining. The Campaign to Save the Boundary Waters is leading the effort to ensure permanent protection for the Boundary Waters Wilderness, America's most visited Wilderness and Minnesota 's crown jewel, from proposed sulfide-ore copper mining. TAKE ACTION NOW

Mining - Hibbing Area Chamber of Commerce, MN

Nonferrous Metal Mining or Copper-Nickel Mining Mining Minnesota. Minnesota is a membership organization committed to sustainable and environmentally responsible critical and strategic metals mining development. Driven by a diverse coalition of organizations, companies and individuals, Mining Minnesota will bring growth and job creation to the ...

Home - Mining Minnesota

Minnesota is poised to become a global leader in supplying the copper, nickel and precious metals that are essential to our way of life. And with new technologies and a comprehensive environmental review and permitting process, we'll set the standard for environmentally responsible mining, right here in Minnesota. Environmental Responsibility

Mining threatens Minnesota's pristine Boundary Waters

Jan 20, 2018· Minnesota is called the Land of 10,000 Lakes, and every year, hundreds of thousands of people visit its pristine Boundary Waters Canoe Area Wilderness. Now, there is a move to mine copper …

Minnesota's Copper and Nickel Deposits are World Class ...

Minnesota has a long history of mining iron ore, which continues to this day. In fact, nearly 75 percent of the iron ore produced in the United States is mined in Minnesota. However, many people may not be aware of the fact that Minnesota has some of the largest undeveloped copper and nickel deposits in the world. These massive deposits hold an estimated 4 billion tons of copper, nickel, and ...

Copper Nickel MIning Ely, MN - Fight For Mining Minnesota

The mining industry and the State of Minnesota know and understand the importance of properly handling and treating the tailings (waste rock) and preventing their exposure to surface air and water. They learned that back in the early 70's with the Dunka mine operation which exposed copper-nickel rocks during the quest for iron ore.

Copper mining dangers: Bold leadership is needed from Walz ...

PolyMet is the first sulfide mining project to be proposed in Minnesota. Copper tailings are wet, highly toxic and stored in tailing ponds. Current Minnesota law allows the tailings stored in dams ...

Mining Minnesota (@MiningMinn) | Twitter

The latest Tweets from Mining Minnesota (@MiningMinn). #Mining #Minnesota is committed to sustainable and environmentally responsible mining of copper, nickel and precious metals. Minnesota

History | PolyMet Mining

In Range: Copper Mining in Minnesota For more than 130 years, the Mesabi Iron Range has been the major source of iron ore for the nation's steel industry, supplying the raw materials that helped build industrial America. In the 1940s copper was discovered near the eastern end of the Iron Range on the northern margin of a massive geologic formation Read More →

Minnesota Mining History - Mining Artifacts

History of Mining in Minnesota {Type a slogan for your site here} Gold Mining. Iron Ores. ... Other MN Mining History Attractions. My Mining Artifact Website. My Copper Culture Website. My Kentucky Coal Mining Website. Check tags, employee ID pins, service award pins and mine safety pins from Minnesota iron mines from the collection of David ...

Fight over copper mining in northern Minnesota heats up ...

Jul 15, 2017· The fight over whether to allow copper-nickel mining near the Boundary Waters Canoe Area of northeastern Minnesota is shifting to the capital …

In Northern Minnesota, Two Economies Square Off: Mining vs ...

Oct 12, 2017· In Northern Minnesota, Two Economies Square Off: Mining vs. Wilderness ... He also believes copper mining and clean water can coexist. ... A recent analysis commissioned by Mining Minnesota showed ...

Feds reverse course, keep Minnesota copper mine plan alive ...

Dec 22, 2017· Last December, the Obama administration refused to renew mineral leases that Twin Metals Minnesota says it needs to build a huge underground copper-nickel mine near Ely and the Boundary Waters. On ...

Trump administration renews mining leases near Minnesota ...

Dec 23, 2017· The Trump administration moved Friday to renew leases for a copper and nickel mining operation on the border of Minnesota's Boundary Waters …

PolyMet | The Next Generation of Mining in Minnesota

PolyMet stands at the forefront of the next generation of mining in Minnesota. We are preparing to extract essential resources from the NorthMet copper-nickel-precious metals ore body with sustainable mining practices that protect our people, our communities and our natural surroundings. Learn more.

Copper mining in the United States - Wikipedia

Copper mining in the United States has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017 the United States produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US.

First copper-nickel mine in Minnesota inches ... - mining.com

The company behind Minnesota's first copper-nickel mine is putting its shoulder to the wheel of a project that has been over a decade in the making. On Friday Polymet Mining (TSX:POM, NYSE:PLM ...

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White House resurrects proposed Twin Metals mine near BWCA ...

Dec 22, 2017· Twin Metals Minnesota will get back its permits to explore for copper on the edge of the Boundary Waters Canoe Area Wilderness, and continue working toward a copper …

Home - Twin Metals

Twin Metals Minnesota is a Minnesota mining company focused on developing and operating an underground mining project in northeast Minnesota.

What is Amy Klobuchar's stance on copper-nickel mining?

Minnesota's senior senator has long been a champion of the iron industry. Her position on copper-nickel mining, however, remains something of a mystery — to those on both sides of the issue.

The Threat of Sulfide Mining — Friends of the Boundary ...

Copper sulfide mining has never been done in Minnesota. It is much different than the traditional form of iron mining that has such a rich history in the state. Sulfide mining is especially dangerous in northern Minnesota because of two factors: The water-rich environment and …

Feds block copper-nickel mine near BWCA - StarTribune.com

Dec 15, 2016· The ruling slams the brakes on one of two copper-nickel mines proposed for northern Minnesota, and is likely to intensify an emotional debate that pits the region's storied mining industry ...

Mining Minnesota's Copper and Nickel: A Solution to ...

10 · Just as steel made from Minnesota's iron ore powered the U.S. military to victory during World War II, supporters of copper-nickel mining in the state say the industry could help defeat another ...

Minnesota mining history - Digging into MN Minerals ...

An article about the history of mining in Minnesota from the publication, Digging Into Minnesota's Minerals, by the Minnesota Department of Natural Resources, Division of Lands and Minerals. This educational publication is meant for elementary school stud

Minesota Mine - Wikipedia

Mining began in 1848, and from 1855 through 1862, the Minesota was the most productive copper mine in the United States. The mine had ten shafts, the deepest of which extended to a depth of 1200 feet (366 m). In 1856, miners tunneled into a 527-ton (478 mt) mass of native copper, the second-largest such mass found in the Copper Country.

Fast Facts - Mining Minnesota

Facts on Copper, Nickel and Precious-Metals Mining. Minnesota is home to one of the world's largest deposits of copper, nickel and precious metals. Copper—a critical metal needed for hybrid cars and wind turbines—is essential for a green economy.

MPR News Primer: Copper-nickel mining | MPR News

Apr 11, 2012· Mining runs deep in the culture and economy of northern Minnesota. So why are people drawing battle lines over plans to build copper-nickel mines in the Iron Range? It's a new kind of mining …

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