. The copper resources of California. Below these gossancaps are bluish-black sulphides. The mines are opened byshafts, two of 200 feet each in depth, one of 50 feet, one of 45feet, and one of 35 feet. Six men were employed. The oresare carbonates and oxides above and sulphides below, and theaverage assay value of the ore was stated to be 7 per centcopper and $2 in gold. Copper King Mine.—This mine is in Sec. 3, T. 12S., R. is owned by the Copper King Mining Company. Ltd., of Lon-don, of which \V. H. Daily is the general manager. The propertyconsists of one mining claim, 1500 by 600 fee
. The copper resources of California. Below these gossancaps are bluish-black sulphides. The mines are opened byshafts, two of 200 feet each in depth, one of 50 feet, one of 45feet, and one of 35 feet. Six men were employed. The oresare carbonates and oxides above and sulphides below, and theaverage assay value of the ore was stated to be 7 per centcopper and $2 in gold. Copper King Mine.—This mine is in Sec. 3, T. 12S., R. is owned by the Copper King Mining Company. Ltd., of Lon-don, of which \V. H. Daily is the general manager. The propertyconsists of one mining claim, 1500 by 600 feet, with all neces-sary buildings thereon. The vein courses northeast and south-west. That portion of it now being worked is from 2 to19 feet in width. The vein matter, however, appears to havea width of over 100 feet. It is schistose and meta-diabase inits composition, all mineralized. The lenses of ore consist ofcarbonates, oxides, and sulphides of iron and copper. Thesulphides obtain to the exclusion of the others in the deeper. y. f. y. y. y. •2 (; 228 THE COPPKR RESOURCES OF CALIFORNIA. Avorkings of the mine. This is opened by three shafts, thedeepest of which is used for operating purposes and the othersfor ventilation only. The first named shaft is 450 feet the 400-foot level a winze is being sunk, and in August,1901, was down 30 feet below the level. Altogether there aresix levels driven from the operating shaft, with total lengthsof over 2500 feet. As said, the ore bodies are in the form oflenses. The usual grano-diorite belt bounds the copper beltto the east and diorite lies to the west. After the ore has been hoisted, crushed, and sampled it isconveyed seventeen miles in traction wagons to a siding on theSouthern Pacific railway, called Deering. Thence it is trans-ported to the companj-s smelter, at Seal Bluflf Landing, onSuisun Ba}^ near Martinez, and there reduced. Power for allpurposes at the mine is generated in a battery of boilers bycrude pe
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