California mines and minerals . of Nevada and Sierra counties, and in early daysits course through the county included some of the richest placersdiscovered, and many millions were taken out. The ancient channels,which proved so rich in the counties above to the east, also extendinto Yuba County, and in the past they saw some of the biggesthydraulic and drift mining operations in the State. Quartz mining has never prospered as it might have done, and asit will do. It began early, saw many failures, and in 1870 the quartzmining product was only $10,680. The principal quartz mining dis-trict is
California mines and minerals . of Nevada and Sierra counties, and in early daysits course through the county included some of the richest placersdiscovered, and many millions were taken out. The ancient channels,which proved so rich in the counties above to the east, also extendinto Yuba County, and in the past they saw some of the biggesthydraulic and drift mining operations in the State. Quartz mining has never prospered as it might have done, and asit will do. It began early, saw many failures, and in 1870 the quartzmining product was only $10,680. The principal quartz mining dis-trict is near Brownsville, where a number of mines, closed in the YOs,are being re-opened. The old Pennsylvania Mine produced severalmillion dollars between 1861 and 1870, and within two years has beenre-opened, displaying a new ore shoot in the 800-foot level. Thereare a number of good and promising quartz mines. The lower Yubaoffers exceptional opportunities for gold dredging, and this formof the industry will flourish in the
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidcaliforniaminesm00cali
