Hecla Greens Creek Mining Co. had sought to expand its 8.5 ... an extension during the review period for the proposals was ...

And the Greens Creek Mine, near Juneau, was flagged for having the greatest potential for extracting critical minerals from tailings out of all Alaska mines. Sheets’ team estimates the value of ...

Not building it, however, strands copper and zinc deposits in the area that mining companies ... area. The Alaska ...