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    Rare 1886 Mining Report on the Jupiter Deep Blue Gravel Hydraulic Mining Co. No. 1, Calaveras County, California. 5.75" x 9", seven pages, printed wraps. This report, dated April, 1886, was produced by mining engineer and metallurgist, C. A. Luckhardt at the request of the company's President, Dr. James D. Whitney. The report includes sections on descriptions of the mine and its various components. Late in 1884 California outlawed hydraulic mining because of the devastating effect on the environment. The Jupiter Deep Blue Gravel Hydraulic Mining Company was one of the last companies to use the procedure. Very few examples of this report are known to exist. With the exception of some trivial soiling to the covers and a gnawed top right corner, the pamphlet is in very good condition.

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    Auction Dates
    May, 2010
    22nd Saturday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
    Page Views: 500

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