Collection: Directories and Documents > Mines Information

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Title: Other Mines - Part 2 (C thru G) Collection Type: Directories and Documents Collection Name: Mines Information # of Pages: 152 Download PDF: User Login Required Download OCR Text: User Login Required

Date Scanned: 2024-01-31 14:14:13 Item Sourced From: PDF First Created: 2025-03-17 03:22:49 Last Updated: 2025-03-17 03:22:49

Original Held At: Searls Historical Library Location: 161 Nevada City Hwy, Nevada City, CA 95959

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Cash In Sight: See “Revival of the Meadow Lake District, California” Mining & Scientific Press, pg. 296297, 2-20-1915 Cassidy: see also O’Connor (Cassidy) Claim listed on Nevada County Map of 1913, Key Number 240, 241 Cassidy Con. Gold Mining Co., Broad & Pine, per Pac Tel & Tel Directory 3-1912 Cassidy Con. Gold Mining Co., Broad & Pine, per Pac Tel & Tel Directory 11-1911 “The Cassidy Con. M. Co., operating in Grass Valley district, has purchased a 100 h.p. electric motor to drive the compressor. The shaft is to be sunk to a depth of 1200 ft.” Mining & Scientific Press, pg. 852, 12-24-1910 “The new shaft at the Cassidy property opened a shoot of $39 ore when down 20 ft. C. M. Wilson is in charge of the work.” Mining & Scientific Press, pg. 843, 6-4-1910 “At the Cassidy claims in the Grass Valley district where work was resumed a short time ago new machinery has been installed and the vein opened in two places. An average of a number of assays showed the ore to have a value of a little over $10 per ton.” Mining & Scientific Press, pg. 811, 5-28-1910 Register of Mines and Minerals, County of Nevada, CA, Issued by the State Mining Bureau ca. 1896-1901. Searls catalog #PH 16-7 The Cassidy, see pg. 29, “Nevada County Mining Directory, 1895” Cassidy Claim listed on 1880 Map of Nevada County, Key Number 211 Cassidy Gold Mine, Ophir Hill, per Marysville Appeal Directory 1878 Cassidy Claim: Grass Valley “State Minerologist Report” #16, 1919, page 133 Cassidy Con.: Grass Valley Mining District Map, 1930 Cassidy Cons. Mine: “State Minerologist Report” #37-3, 1941, page 447 Cassidy Consolidated Gold Mining Co.: “State Minerologist Report” #37-3, 1941, page 393 “State Minerologist Report” #16, 1919, page 133 “Grass Valley district mines are employing more men that ever before. The total is 1000, of whom 400 are employed by the North Star company (not including 250 at its Nevada City property), 330 by the Empire, 110 by the Brunswick, 43 by the Golden Center, 30 by the Union Hill, and many others at the Black Bear, Osceola, Signal, Cassidy and Kenosha mines. Foundries and other industries employ about 250 more. The city has now a population of approximately 6000 people. Orchards and farming help to add to the importance of the centre.” Mining & Scientific Press, pgs. 294-295, 8-21-1915 “At the Cassidy mine, adjoining the Empire, nine miners under W. P. Martin, averaged 11 ft. per day in hard ground for the past four weeks.” Mining & Scientific Press, pg. 255, 814-1915 “Vigorous development of the Cassidy continues. The eins in this property are parallel with those in the Empire and Pennsylvania.” Mining & Scientific Press, pg. 1002, 6-261915 “The Cassidy, adjoining the Empire, is nearly unwatered. Electric pumps have replaced the air pumps. Sinking will soon be started.” Mining & Scientific Press, pg. 964, 6-191915 “The Cassidy mine is to be unwatered, and George St. John, of the Alaska mine, Sierra county, is head of a new company to reopen the property.” Mining & Scientific Press, pg. 907, 5-30-1914 “On the 350 ft. level of the Cassidy Con. The vein has been intersected. It averages 40 in. wide. Assays run $10 to $20 per ton. Sinking will be continued until the 500 ft. point is reached, and it is probable that a mill will be erected before the end of summer. The Cassidy adjoins the Empire and was re-opened about a year ago, after a long period of inactivity. Until the present owners took charge, the property had not been developed to any extent. F.C. Longe is manager.” Mining & Scientific Press, pg. 640, 6-5-1911 12