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2. Placer mining - Wikipedia

   en.wikipedia.org/wiki/Placer_mining

   The small specks are gold, the larger ones are merely pebbles A modern sluice box made of metal; in its base are the riffles used to catch gold settling to the bottom The same principle may be employed on a larger scale by constructing a short sluice box , with barriers along the bottom called riffles to trap the heavier gold particles as water ...

3. 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 ...

4. Rocker box - Wikipedia

   en.wikipedia.org/wiki/Rocker_box

   Like a sluice box, the rocker box has riffles and a carpet in it to trap gold. It was designed to be used in areas with less water than a sluice box. The mineral processing involves pouring water out of a small cup and then rocking the small sluice box like a cradle, thus the name rocker box or cradle.

5. Recreational gold mining - Wikipedia

   en.wikipedia.org/wiki/Recreational_gold_mining

   Small amounts of gold have been found in streams draining glacial deposits in the Midwest. Gold prospecting and mining activities allowed on public lands vary with the agency and the location. Gold pans and shovels are commonly allowed, but sluice boxes and suction dredges may be prohibited in some areas.

6. Hydraulic mining - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_mining

   Gold miners excavate an eroded bluff with jets of water at a placer mine in Dutch Flat, California sometime between 1857 and 1870.. The modern form of hydraulic mining, using jets of water directed under very high pressure through hoses and nozzles at gold-bearing upland paleogravels, was first used by Edward Matteson near Nevada City, California in 1853 during the California Gold Rush. [3]

7. The movies we can’t wait to see in 2025 - AOL

   www.aol.com/movies-t-wait-see-2025-184928084.html

   After a year filled with animated inner emotions, mutants, aliens, gladiators and witches, the new year will bring a crop of new (or, newly revisited) movies to choose from, as always.