Silver and Gold: An Account of the Mining and Metallurgical Industries of the United States |
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الصفحة 15
... County , and Mr. E. N. Strout , of Placerville , El Dorado County . . Condition of the mining interest . - The business of mining for the precious metals has for the past two years made very marked advances through- out all parts of the ...
... County , and Mr. E. N. Strout , of Placerville , El Dorado County . . Condition of the mining interest . - The business of mining for the precious metals has for the past two years made very marked advances through- out all parts of the ...
الصفحة 20
... El Dorado County the California Water Company are constructing a system of ditches and reservoirs which will furnish from 30,000 to 45,000 inches of water , miners ' measurement , and open a large section of gravel country hitherto ...
... El Dorado County the California Water Company are constructing a system of ditches and reservoirs which will furnish from 30,000 to 45,000 inches of water , miners ' measurement , and open a large section of gravel country hitherto ...
الصفحة 24
... El Dorado County , at an elevation of from three to five thousand feet above the sea . These lakes are fed by streams from mountain peaks and gorges of perpetual snow , and are capable of furnishing a constant stream of 40,000 inches of ...
... El Dorado County , at an elevation of from three to five thousand feet above the sea . These lakes are fed by streams from mountain peaks and gorges of perpetual snow , and are capable of furnishing a constant stream of 40,000 inches of ...
الصفحة 26
... El Dorado County . The formation , here covering a large portion of two entire townships traversed by the company's canal , consists of a soft , easily disintegrated slate , permeated by innumerable small seams of quartz . Many of these ...
... El Dorado County . The formation , here covering a large portion of two entire townships traversed by the company's canal , consists of a soft , easily disintegrated slate , permeated by innumerable small seams of quartz . Many of these ...
الصفحة 27
... El Dorado County : One other point which may be noted as being of some little interest to the miners , as a matter of curiosity if nothing more , although it is no new thing , is the occasional finding of diamonds in the auriferous ...
... El Dorado County : One other point which may be noted as being of some little interest to the miners , as a matter of curiosity if nothing more , although it is no new thing , is the occasional finding of diamonds in the auriferous ...
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50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California Cañon carbonate cent chemical claim coal commenced company's contains copper cost County course Creek Cupellation December deposits depth developed district ditch drift drill east El Dorado County engine erected Eureka expense extracted feet deep feet in length feet long feet wide furnace galena gangue gold Gold Hill gravel ground Gulch Hill hundred hydraulic inches incline iron labor lead ledge limestone located lode metallurgy metals miles mill miners Mining Company months nearly Nevada opened operations ounces owners placer mines pounds present Professor prospecting quantity quartz quartzite rich River rock San Francisco silver slag slate smelting smelting-works stamps stopes sulphurets sunk supply surface Table Mountain tailings thick tion tons Total tunnel Tuolumne County tuyeres Valley vein width yield