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The Future of Gold Mining in Nevada | Best States | US News- california gold mines explore real california gold mines ,Those ounces are more than were produced in any other gold rush, the report continues: The California Gold Rush, 1849-1859, had an estimated 29-70 million ounces, while the Comstock era, 1860-1875 ...gold mining stamp mill - zacarafarm.comStamp Mill – Explore Real California Gold Mines! The stamp mill was the big gold machine of its day. By 1850 in California all of the rivers and streams had been picked clean of placer gold.





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