Hard Tack Mine

Hard Tack Mine 100-year-old mine tunnel

This 100-year-old mine tunnel was supposed to be an underground transport tunnel for nearby Hidden Treasure Mine, but the tunnel was never completed. Part of the Hinsdale County Galena Mining District, the Hidden Treasure Mine and the Treasureville mining camp were active in the production of silver ore from the 1890’s until 1930.

Hard Tack Mine ore mineral specimen

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On the web: Hard Tack Mine