. The copper resources of California. d tothe Bully Hill Copper Mining and Smelting Company, ofwhich Mr. De La Mar is president. The owners give but little detailed information about themine. It is in a zone containing irregular vein-like formations,capped with gossan, the veins trending east of north. Theirdip is nearly vertical. The principal Bully Hill veins occur asfissures in meta-rhyolite as classified by the U. S. GeologicalSurvey. Two main parallel ore bodies have been exploited inthe lode claims and one in the Popejoy placer claim. Thewidth of the veins varies from 4 to 100 feet, and
. The copper resources of California. d tothe Bully Hill Copper Mining and Smelting Company, ofwhich Mr. De La Mar is president. The owners give but little detailed information about themine. It is in a zone containing irregular vein-like formations,capped with gossan, the veins trending east of north. Theirdip is nearly vertical. The principal Bully Hill veins occur asfissures in meta-rhyolite as classified by the U. S. GeologicalSurvey. Two main parallel ore bodies have been exploited inthe lode claims and one in the Popejoy placer claim. Thewidth of the veins varies from 4 to 100 feet, and averages 30feet. The ore lies in lenses connected by narrow seams of tunnels have been driven into the hill, and the openingscomprise several thousand feet of tunnels and drifts, withextensive stopes and upraises. The lowest tunnel level isabout 600 feet below the outcrop, and through this level. No. 3,most of the ore mined is taken to the surface. The tunnel isdri\-en as a cross-cut, and encountered the main vein at a point. o X ? r. (76)
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