. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. y 100 feet, to the 700-foot level. Winze 200 feet deep on 700-footlevel north of shaft. Steam hoist and 20-stamp mill on the Andrew McCormick, of Stockton, owner. Green Mine (quartz). Located 3 miles northeast of Confidence, onridge north of the north fork of the Tuolumne River. The strike ofvein is north and south, dip 30° E., in granodiorite. There is a shaft400 feet deep on vein. Steam hoist and 10-stamp mill on Thos. Magee & Sons., of San Fra
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. y 100 feet, to the 700-foot level. Winze 200 feet deep on 700-footlevel north of shaft. Steam hoist and 20-stamp mill on the Andrew McCormick, of Stockton, owner. Green Mine (quartz). Located 3 miles northeast of Confidence, onridge north of the north fork of the Tuolumne River. The strike ofvein is north and south, dip 30° E., in granodiorite. There is a shaft400 feet deep on vein. Steam hoist and 10-stamp mill on Thos. Magee & Sons., of San Francisco, owners. Harvard (Trio) Mine (quartz). (See Report X, p. 53; BuU. 18,p. 130.) Situated 1 mile southwest of Jamestown, on the southeastslope of Whiskey Hill. Holdings consist of the following claims:McCann, Mooney, Trio, Sobrante, and Mooney Mill Site, having a totalarea of 80 acres. Length along the lode of 5000 feet. Three veinscalled east, central (or boulder), and west, have been exploited. Theseveins have a course of N. 37° W., dip 60° NE. The lode—which is very 150 MINES AND MINERAL TUOLUMNE COUNTY. 151 prominent, forming the central portion of Whiskey Hill—on the northend of the Trio claim shows massive quartz croppings, having a widthof 100 to 300 feet. Average width of veins is about 10 feet. Thecentral vein consists partly of a body of solid quartz from 6 to 12 feetthick, and as a rule tlie values are too low grade to mine. The eastand west veins are in the form of stringer leads, consisting of a massof quartz stringers cutting the schist, carrying more or less free goldand sulphurets. The main footwall of the lode is serpentine with a hanging-wall ofCalaveras slates. Ore shoots occur west of central vein with a trendtoward the north. On the south end of the ore body a high-grade shootof ore 100 feet long by 3 feet wide is encountered on the contact betweenthe slates and serpentine. There are seven distinct ore shoots developedon this property
Size: 965px × 2590px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcaliforn, bookcentury1800, bookdecade1850, bookyear1853
