However, important production of lode gold did not commence until the early s because of difficulties in milling the ore.http://dofalidaju.tk
Ranches and Agriculture in Nevada County - Maria E. Brower - Google книги
The Champion and Providence mines were the major producers during these years. Later these two mines were in litigation, and in the Champion owners bought the Providence.
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Large-scale lode-gold mining was resumed in the district again during the s when the Lava Cap and Banner mines were operating. There has been only minor activity since The old town of Nevada City, the county seat, is now a popular tourist center with numerous well-preserved old buildings. The Nevada County Narrow Gauge railroad served the area from to The central portion of the district is underlain by granitic rocks, chiefly granodiorite.
Melvil Decimal System: 979.43
Adjacent are beds of slate, mica schist, and quartzite, most of which are part of the Calaveras Formation Carboniferous to Permian. To the west and southwest are fairly extensive beds of massive greenstone, amphibolite, and serpentine. There are a number of fine- to medium-grained dioritic and aplitic dikes, some of which are associated with the gold-quartz, veins.
In places these rocks are overlain by Tertiary channel gravels capped by rhyolite and andesite. Ore Deposits.
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But of the three important industries, only agriculture has survived and is thriving today. Many of the pioneer, multigenerational ranches and farms continue to operate today on the land their owners' ancestors worked. These ranches have a rich history of contributing to the economic community as well as conserving the land for future generations. Flumes Ditches and the Nevada Irrigation District.
Nevada County Narrow Gauge Railroad. Booster Organizations. On Ranches and Farms.
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Melvil Decimal System: Works under MDS Wording Edition North central counties. What is MDS? LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable.
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