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  2. Empire Mine State Historic Park - Wikipedia

    en.wikipedia.org/wiki/Empire_Mine_State_Historic...

    In October 1850, George Roberts discovered gold in a quartz outcrop on Ophir Hill, [5] but sold the claim in 1851 to Woodbury, Parks and Co. for $350 (or about $13,000 today, adjusted for inflation). The Woodbury Company consolidated several local claims into the Ophir Hill Mine, but they mismanaged their finances and in 1852 were forced to ...

  3. Ironstone's Crown Jewel - Wikipedia

    en.wikipedia.org/wiki/Ironstone's_Crown_Jewel

    Along with other gold-heavy quartz pieces, the gold was first believed to be bits of damaged machinery. A number of days later, the materials were examined and found to be full of gold. The “Crown Jewel” was the largest of the pieces, weighing in at 60 lb troy (22.4 kg). [4] The finding of the gold was reported by The National Enquirer. [5]

  4. North Star Mine and Powerhouse - Wikipedia

    en.wikipedia.org/wiki/North_Star_Mine_and_Powerhouse

    In 1858, the sheriff sold the company to Edward McLaughlin to settle an $8,000 judgement. In Feb. 1860, it was purchased for $15,000 by the owners of the North Star Group, which became the North Star Quartz Mining Co. in 1861. The North Star Gold Mining co. was incorporated in 1867. The mine shut down in 1875 after reaching a depth of 1,200 feet.

  5. Mother lode - Wikipedia

    en.wikipedia.org/wiki/Mother_lode

    The California Mother Lode is a zone from 1.5 to 6 kilometres (0.93 to 3.73 mi) wide and 190 kilometres (120 mi) long, between Georgetown on the north and Mormon Bar on the south. The Mother Lode coincides with the suture line of a terrane, the Smartville Block. [4] The zone contains hundreds of mines and prospects, including some of the best ...

  6. Gold Hill (Nevada County, California) - Wikipedia

    en.wikipedia.org/wiki/Gold_Hill_(Nevada_County...

    Gold Hill in Grass Valley, California, was the site of one of the first discoveries of quartz gold [2] in California. While quartz gold was also found in other areas of Nevada County, California during the same time, it is this find near Wolf Creek that led to quartz-mining frenzy and subsequent creation of the Gold Country quartz-mining industry.

  7. Gold in California - Wikipedia

    en.wikipedia.org/wiki/Gold_in_California

    Gold in California. Three gold nuggets from Tuolumne County, California, similar to what the early miners would have found. Gold became highly concentrated in California, United States as the result of global forces operating over hundreds of millions of years. Volcanoes, tectonic plates and erosion all combined to concentrate billions of ...

  8. Gold mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Gold_mining_in_the_United...

    Gold production in California peaked in 1852, at 3.9 million troy ounces (121 tonnes) produced in that year. But the placer deposits worked in the early years were quickly exhausted, and production crashed. Hardrock mining (in California called quartz mining) began in 1849, and placer mining by hydraulic mining began in 1852.

  9. Kennedy Gold Mine - Wikipedia

    en.wikipedia.org/wiki/Kennedy_Gold_Mine

    08001347. CHISL No. 786 [1] Added to NRHP. July 7, 1981. The Kennedy Gold Mine is a gold mine in Jackson, California, one of the deepest mines on the Mother Lode. It closed in 1942 and together with nearby Argonaut Mine, is registered as California Historical Landmark No. 786. [1] It has since been re-opened as a tourist attraction.

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