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Precious Metal Mining in Colorado

Updated 2023-05-25
  • Gold Taken from Colorado Mine

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    During the raising of the Rocky Mountains millions of years ago, superheated fluids rose from deep within the Earth and pushed minerals such as gold and silver up through the Earth's crust. Erosion brought pieces of gold downstream in creeks (placer gold), while the deeper deposits (lode gold) could only be recovered by skilled labor and technology.
    Gold Taken from Colorado Mine
  • Argo Tunnel

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    The Argo Tunnel was part of the precious metal mining operations in Gilpin and Clear Creek County during the late nineteenth century. At more than four miles long, it connected a host of gold mines between Central City and Idaho Springs before it was shuttered following an accident in 1943.
    Argo Tunnel
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