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The California Gold Rush of 1848 was primarily driven by the discovery of placer gold deposits, which are concentrations of gold particles found in riverbeds and alluvial deposits. These deposits formed as a result of erosion from gold-bearing quartz veins in the nearby Sierra Nevada mountains. The ease of access to this gold in river sediments attracted thousands of prospectors and miners, leading to a massive influx of people to California in search of fortune.

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1mo ago

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