DCHP-1 Online
wash out Placer Mining 
separate gold from gravel by using water.
See also: wash ((v.)) (def. 1)
- 1898 (1952) On Eldorado Creek I have seen from No. 36 over 100 lbs., (no mistake, not oz) of gold, washed out in 24 hours. Of course this does not go on the year thro', it takes months of very expensive labour to get ready for the "Wash-up."
- 1964 He washed out $165,000 in three months at the No. 16 Gold Stream mine.
- 1898 (1952) On Eldorado Creek I have seen from No. 36 over 100 lbs., (no mistake, not oz) of gold, washed out in 24 hours. Of course this does not go on the year thro', it takes months of very expensive labour to get ready for the "Wash-up."