Sluice box definition
Sluice box means a portable unit constructed of a wood or metal flume or trough equipped with transverse riffles across the bottom of the unit and that is used to recover heavy mineral sands.
Sluice box means a trough or box through which water is directed to separate
Sluice box means a trough or box through which water is directed to separate minerals from sediments and which does not exceed 10 square feet in size.