Review of the Nature, Resources and Plan of Development (now in Progress) of the Northern Division of the Mariposa Estate1873 - Gold mines and mining - 95 pages |
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Review of the Nature, Resources and Plan of Development (Now in Progress) of ... Benjamin Silliman No preview available - 2015 |
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air compressor Amador Amador County average blast body bored bullion Burleigh Drill California cent chimnies Chinese compressed air Comstock lode cost of mining croppings Crown Point depth Diamond Drill dividends dollars drilling machines driven duced Eureka exploration extent fact feet wide foot wall former Giant Powder Gold Hill gold-bearing Gould and Curry Gourguet Grass Valley Hallett's Point hand drilling hanging wall hard rock holes Hoosac Tunnel important inch known labor Land and Mining Linda Manager Mariposa Company Mariposa Estate Mariposa Land MARK BRUMAGIM Mechanical Drill Merced River miners mining ground Mother Lode Mother Vein mouth Nevada City Nevada County nitro-glycerine numerous obtained Ophir Mills outcrops ownership paid pay shoot powerful explosives present Princeton probably profit progress quartz veins reduced River Tunnel running shaft SILLIMAN sinking slates Specimen Vein stamps stopes sunk surface Sutter Creek thickness timber tons Tree and Josephine water power