Mines and mineral resources of Shasta county, Siskiyou county, Trinity county (Google eBook)

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State printing office, 1915 - Mines and mineral resources - 192 pages
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Page vii - Valley, with its northernmost tributaries, also portions of both the Sierra Nevada Mountains on the east and the Coast Ranges on the west, the two systems forming a junction at Mount Shasta in Siskiyou County.
Page 121 - ... being worked with an Evans hydraulic elevator, with an outlet pipe 20 inches in diameter. The lift is 20 feet. The pressure pipe is 11 inches in diameter, with a head of 14 feet. The flume is 3 feet wide, with block paving. Eastlick & Gardner. L. Eastlick, of Fort Jones, and S. Gardner, of Greenview. In Sec. 17, T. 43 N., R. 9 W., in the Oro Fino Mining District. Area of holdings, 25 acres. This company began operations in 1890, and has worked 8 acres. The values are not given. In depth the gravel...
Page 19 - ... originally believed that the basalt was barren at this depth, but the good showing seemed to disprove this assumption, and a 130-foot drift was run from 5th level into the basalt, with the result that an exceedingly large and rich deposit was discovered. No. 3 level is connected by chutes and upraises with the upper workings, of which some drifts run along the vein 800 and 1000 feet. The mine is timbered by the square-set system. Mining timbers are floated down Pitt River from the timber region...
Page 14 - ... flows of volcanic rocks that finally resulted. The deep-seated phases of these eruptions include granite, granite porphyry (quartz porphyry), and diorite, including quartz diorite. These rocks are either coarsely or finely crystalline, and of a light gray color, greenish or dark, varying with locality. Rhyolite, trachyte, and andesite are names properly given to surface flows of volcanic rocks, and such flows occur throughout the copper districts, associated with tuffs and breccias of a similar...
Page 143 - City. Owners, Morris Brothers. Comprises 20 acres, at 2700-foot elevation ; small vein, high grade and free milling, in slate ; 150-foot tunnel and 100-foot drift ; two men employed ; about $10,000 taken out in pockets. Enterprise, in Sees. 4 and 5, T. 35 N., R. 11 W., in the East Fork mining district, 7| miles north of North Fork, in the Trinity Forest Reserve. Owner, Enterprise Gold Mining Company, of Boston, Mass., Geo. S. Fenwick, secretary; comprises 160 acres, the first claim, Lone Jack, being...
Page 88 - ... in this county now being worked or under consideration by the elevators and dredges amounts to about 2,000 acres, but there is much more that would be exploited if more successful methods of operation could be devised. COMPANIES OPERATING. Wright & Fletcher. HD Wright and Mrs. CD Frye, Fort Jones. In Sec. 18, T. 43 N., R. 9 W. In the Oro Fino Mining District. Area of holdings, 200 acres. This company began operations in 1890, and has worked 20 acres of ground. The values are not given. In depth...
Page 15 - Residual accumulations of metallic oxides is the rule, often forming thick crusts of masses of "gossan," or else only staining the rocks upon which it is deposited. The chief metallic element of the gossan is of course iron, though it very often contains a small percentage of copper, and it has often formed an ore of gold and silver, as in the Iron Mountain, Bully Hill, and Afterthought mines. The term "gossan...
Page 4 - ... occurring chiefly in the winter, exceeds forty inches as a rule, and the snows of the higher ranges maintain the streams throughout the summer months. The principal streams are the Sacramento, McCloud, and Pitt rivers, the first two rising in the mountains above the northern boundary, and the last in Modoc County. The Sacramento flows southward through the western half of the county in a deep, sinuous, and exceedingly picturesque canyon. crossing the copper belt a little above the apex of the...
Page 1 - ... has exhibited true volcanic activity during the past six weeks. In the bowl of the much eroded -old crater a series of steam explosions have opened a new vent, and from it stones have been thrown over an area more than one-half mile in diameter, and ejected volcanic ash has been wind-borne in .sufficient quantities to make a perceptible deposit at a distance of fifteen to twenty miles. No freshly molten lava has been seen and no heat has been noticeable, except that of the escaping steam.
Page 97 - Taft, in Sec. 30, T. 11 N., R. 8 E., in Liberty mining district, 9 miles northeast of Forks of Salmon by trail; in Klamath Reserve; at an elevation of 2800 feet. Owner, C. Taylor; comprises 40 acres, located in 1908 ; pocket gold in slate ; 100-foot tunnel ; small production. Idle. Teddy-Avalon, in Sec. 18, T. 47 N., R. 7 W., in Virginia Bar mining district, 7 miles north of Gottville in Klamath Reserve. Owner, EJ Durkee ; comprises 40 acres ; formation is granite ; short ore shoot, 1 foot wide ;...

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