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  2. Placer mining - Wikipedia

    en.wikipedia.org/wiki/Placer_mining

    A long sluice box runs along the mine. [16] The sluice box was used extensively during the California gold rush for larger scale operations. When streams became increasingly depleted, the grizzly and undercurrent variants of the sluice box were developed. The grizzly is a set of parallel bars placed at a 45-degree angle over the main sluice box ...

  3. Gold dredge - Wikipedia

    en.wikipedia.org/wiki/Gold_dredge

    The original methods to perform placer mining involved gold panning, sluice boxes, and rockers. Each method involves washing sand, gravel and dirt in water. Gold then settles to the bottom of the pan, or into the bottom of the riffles of the sluice box. The gold dredge is the same concept but on a much larger scale.

  4. Sluice - Wikipedia

    en.wikipedia.org/wiki/Sluice

    A sluice gate. A sluice (/ s l u s / SLOOS) is a water channel containing a sluice gate, a type of lock to manage the water flow and water level. It can also be an open channel which processes material, such as a river sluice used in gold prospecting or fossicking. A mill race, leet, flume, penstock or lade is a sluice channeling water toward a ...

  5. Mining methods of the Klondike Gold Rush - Wikipedia

    en.wikipedia.org/wiki/Mining_methods_of_the...

    A faster way was by a rocker box or by sluicing. Dirt was filled into the box or sluice together with water and rocking movements or gravity would make the gold particle go to the bottom whereas sand and fine gold particles would flow off with the water.

  6. Sumpter Valley Gold Dredge - Wikipedia

    en.wikipedia.org/wiki/Sumpter_Valley_Gold_Dredge

    The internal mechanics were not very sophisticated—they duplicated, on a larger scale, many of the devices used by placer mining throughout the gold rush, such as the gold pan and the sluice box. In essence, the dirt that was dug by the large electrically powered buckets was sifted and sorted, and the remainder was washed over a series of ...

  7. These are the top 100 Black Friday deals, according to Walmart

    www.aol.com/lifestyle/these-are-the-top-100...

    JBL Partybox 110 portable party speaker for $199 (save $150.95) Laptops and tablets. onn. 7" tablet for $39 (save $20) Apple Pencil for $59 (save $40) Acer Nitro 27" Curved Monitor for $109 (save ...

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