This has been a long story in Minnesota.. we have indeed several mine proposals for the arrowhead part of Minnesota..
The company most in question is from Chile, also a Swiss company and some Canadian interests..
These mines threaten the lake Superior water shed as well as that of the boundry waters..
The latter has gained much attention because after being stopped based on past practice and the possable down side, trump and company stopped all study and gave it the OK to operate..
In fact denied access to a study done by the DNR/EPA...
Now locked in court battles we have both state parties involved and looks as if a 2 or 3 year struggle to get to the next step. Wh**ever that may be..
It is a no brainer for me. the risk in next door to me by global standards and the returns would go to South America..
risk is not worth the probable loss..
https://www.minnpost.com/national/2019/10/why-p**********l-candidates-are-talking-about-the-boundary-waters/?utm_source=MinnPost+e-mail+newsletters&utm_campaign=2cc7e22f21-EMAIL_CAMPAIGN_2019_10_18_03_54&utm_medium=email&utm_term=0_3631302e9c-2cc7e22f21-Sulfide-ore copper mining, the process of extracting metals from sulfide-ore, has never been tried in Minnesota. Extracting sulfide ore is risky in that, when its exposed to air and water, it creates sulfuric acid that can leach into nearby water. But Twin Metals, a subsidiary of Chilean mining conglomerate Antof*gasta, aims to try it (PolyMet, a similar Minnesota project not in the BWCA watershed, is closer to completion). The project proposed by the company would be an underground copper, nickel, platinum group metals and cobalt mine in Birch Lake, just outside of the BWCA. The company holds a number of mineral leases from the federal government that give it the right to develop its mine.
The Bureau of Land Management, part of the U.S. Department of the Interior, decides whether or not mineral leases are renewed. In December 2016, the Obama administration did not renew the Twin Metals mineral leases. The administration contended that the type of proposed mining, sulfide-ore copper mining, may pose significant environmental risks. The administration also committed to studying the issue better, issuing a two-year study that could result in a 20 year moratorium on mining in the region, if it was found to be too risky.
But the Trump administration reversed course, renewing the leases and canceling the study investigating the potential harm of copper-nickel mining in the region.