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NewRange to study possible changes to copper-nickel mine - Duluth News Tribune | News, weather, and sports from Duluth, Minnesota
https://www.duluthnewstribune.com/news/local/newrange-to-study-possible-changes-to-proposed-copper-nickel-mine
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environment
mining
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energy and mining
iron range
Different tailings disposal and dam construction methods are under review. So is processing more ore per day, a move that could shorten the project's 20-year mine life by five years.
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