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- Image of the California Census from the records of the office of the California Secretary of State 1
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Search Results 1891 to 1900 of 5013
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Caption: "An Abandoned Hydraulic Mine near Camptonville Calif.," c. 1920. Hillside ravaged by hydraulic mining, in which a pressurized jet of water washes sediment and gravel into a series of sluices, allowing the heavier gold and gold-carrying sediment to sink to the bottom for removal. California banned this environmentally destructive practice in 1884.
Date: 1920
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Office Memorandum from Margaret Billings to War Services Division, Sacramento regarding summary of review in San Benito County
Date: January 9, 1946
