MINING NEWS: Greens Creek touts strong output, longevity
Mine’s geologists, engineers adopt new technologies to improve efficiency of underground operation, offset declining ore grades
For Mining News
Though owners of the Greens Creek Mine on Admiralty Island 18 miles south of Juneau say the underground operation ore grades have begun declining after some 15 years of production, they estimate the mine will produce commercial quantities of gold, silver, lead and zinc for at least another decade.
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Higher metals prices offset higher costs
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