+Title: Mining History Association
Description: Learn more about mining history - gold mining, copper mining, coal mining, zinc mining and more.
Keywords:mining, mining history, mining claims, gold, silver, copper, lead, zinc, coal, iron, gold mining, silver mining, copper mining, lead mining, zinc mining, coal mining, iron mining, exploration, prospecting, metallurgy, beneficiation, smelting, refining, labor unions, labor strikes,
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