Bulletin . he past two years. There was a small production years ago butthe 10-pipe retort is no longer usable. Bibl.: Cal. State Min. Bur., Report XV, p. 707; Chapter period, 1915-1916. ; Bull. No. 27, p. 157. Josephine Group (also known locally as the Tartaglia Group; alsoGeorg-e Mine). Joe Tartaglia, owner, Klau post office. It consists oftwo claims in Sec. 29, T. 27 S., R. 10 E., M. D. M., 20 miles west ofPaso Robles, elevation about 1900. The original discovery was mad^in 1862. A furnace was built, and the dump indicates considerableore was burned, but the plant has long s
Bulletin . he past two years. There was a small production years ago butthe 10-pipe retort is no longer usable. Bibl.: Cal. State Min. Bur., Report XV, p. 707; Chapter period, 1915-1916. ; Bull. No. 27, p. 157. Josephine Group (also known locally as the Tartaglia Group; alsoGeorg-e Mine). Joe Tartaglia, owner, Klau post office. It consists oftwo claims in Sec. 29, T. 27 S., R. 10 E., M. D. M., 20 miles west ofPaso Robles, elevation about 1900. The original discovery was mad^in 1862. A furnace was built, and the dump indicates considerableore was burned, but the plant has long since gone to pieces, and thereare no segregated records of the output. The works are all superficial,the ore being similar to that of the Little Bonanza nearby. There isone tunnel in 150 feet, opening up a vein 12 wide. A small amountof development work is being done to cover the annual assessment. Bibl.: Cal. State SUn. Bur., Report XV, p. 720; Chapter period, 1915-1916, p. 126; Bull. 27. p. Photo No. 2h. I. , ,,, ,,, tuinacc, erected 1873. at Keystone Mine, San Luis Obispo County Photo by E. W. Carson. Keystone Mine. Phelan Bros., owners, Cain])ria. It is on patentedland on the flank of Rocky Butte, in Sec. VA. T. 2(? R. 8 SI. D.]\r., 16 miles east of San Simeon by road. This pi-operty was located QUICKSILVER RESOURCES. 135 in tlu early seventies and has l)een credite<l in former reporls withconsiderable production. The furnace and condensers, shown in thephotograph (Xo. 28). were completed late in 1874 and the mine pro-duced about 60 flasks of quicksilver in 1875. according to the bestinformation obtainable, and which seems to be the only production ofwhich there is record. The furnace is of the old coarse-ore type of5 tons capacity and there are 6 of the sheet-iron condensers. Thewhole plant is quite an interesting relic, as most of such equipment haslong since disappeared. The underground workings consisted of atunnel said to have been a
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