DCHP-1 Online
sluicing-box Placer Mining 
n. a long box or trough containing riffles (def. 2) by means of which gold is separated from gravel. [See picture at sluice-box.]
See also: riffle ((n.)) (def. 2) sluice-box (and picture)
sluicing-box Placer Mining
n. a long box or trough containing riffles (def. 2) by means of which gold is separated from gravel. [See picture at sluice-box.]
See also: riffle ((n.)) (def. 2) sluice-box (and picture)