location: mining and pelton wheel museum s mill at allison ranch rd grass valley no. 852 north bloomfield mining and gravel company - this was a major hydraulic gold-mining operation in california. it boasted a vast system of canals and flumes its 7800-foot drainage tunnel was termed a feat of engineering skill.
it was famed for its hydraulic mines which from 1865 to 1878 shipped $6125000 in gold. five water ditches passed through the town to serve the mining companies but they had to cease operations in 1882 when a court decision made hydraulic mining unprofitable.
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end of hydraulic mining. like the other communities in the region that depended on hydraulic mining blue tent began to decline following the 1884 sawyer decision. a farmer near sacramento had sued the major mining company in state court to stop it from discharging mining debris into the yuba river.
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hydraulic mining scott road sacramento ranch impact crusher base on the plentiful experience of producing and marketing of impact crusher r d institution designed hst series single cylinder cone crusher with hydraulic-driven system is a kind of new type high efficient crush. » learn more. placer county - sierra college