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List of pumping, hoisting and drilling machinery, for sale by North Bloomfield gravel mining company
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North Bloomfield Gravel Mining Co. Records
Manuscripts
This collection consists primarily of letters from Henry Pichoir, North Bloomfield's secretary, and Lester L. Robinson, its president, to William H. Radford and J. G. Mather, superintendents of company operations in the field, between January 3, 1890, and January 7, 1891. The letters deal mainly with the state of accounts kept by the superintendents, the physical condition of the company's ditches and flumes after storms, and the company's efforts to control the run-off from its operations. There are also occasional discussions of the company's relationship with other mining firms, including water leases and operating facilities. Persons represented by 5 letters or more: Joseph H. Mooser (14 letters); Henry Pichoir (68 letters); and Lester Ludyah Robinson (5 letters). Notable items include two letters from Lester Robinson to Superintendent Mather, April 9, 1890 (HM 51127) and June 23, 1890 (HM 51128), which discuss plans for water sampling and the construction of tunnels for water diversion to guard against run-off.
mssHM 51035-51130
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Plan of Bloomfield tunnel and gravel mines owned by North Bloomfield Gravel Mining Co., Nevada Co., Cal
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A proposed tunnel to drain a gravel channel of water to be used for hydraulic mining. "Present diggings" are shown in vicinity of the Malakoff Diggings, now a State Park, illustrating vividly this destructive method of mining for gold. Verso is a spread sheet. Submap: [cross] section through Bloomfield Tunnel. Prime meridian: GM. Relief: no. Graphic Scale: Feet. Projection: Plane. Printing Process: Lithography. Verso Text: Tabular statement for ... Bloomfield Tunnel. MS note: 436186.
436186
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General statement concerning the property of the North Bloomfield Gravel Mining Company of California, organized August 7, 1866
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266458
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Buffalo Gravel Mining Company : incorporated under the laws of Oregon, 1908
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348977
