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  • Gold Rush: 18481860: Mining Techniques Picture This

    A study of the mining techniques used during the California Gold Rush reveals more than just information of how to extract gold from the earth. The various types of ...

  • Treadwell gold mine Wikipedia

    The Treadwell gold mine was on the south side of Douglas Island, .5-mile (0.80 km) east of downtown Douglas and southeast of downtown Juneau, owned and operated by ...

  • Gold dredge Wikipedia

    A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large ...

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