Feds issue draft assessment that could doom Twin Metals’ proposed mine
ST. PAUL, Minn. (AP) -- The U.S. Forest Service has issued a draft environmental assessment to lay the foundation for a proposed 20-year moratorium on copper-nickel mining upstream from the Boundary Waters Canoe Area Wilderness.
Formally, the proposal would “withdraw” about 352 square miles within the Rainy River watershed in the Superior National Forest around Ely from new mineral leasing for 20 years.
The plan threatens to doom the proposed Twin Metals mine near Birch Lake, which drains into a river that flows into the Boundary Waters.
But it would not affect a separate project, the proposed PolyMet mine, which lies in a different watershed.
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