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  • n. A box with riffles along the bottom, used to trap heavier gold particles as water washes them and the other material along the box.

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  • An artificial channel with riffles along the bottom, set in a stream and fed with dirt or alluvium so that the dirt and lighter materials will wash away and the heavier gold will be trapped in the riffles. Commonly used by recreational miners.

    March 10, 2008