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accidents adit Alice Arm assayed average batholith blasting Boundary Lake Bralorne British Columbia Canada Canadian Cariboo cent chalcopyrite Company Limited Company office concentrates Consolidated Mining Copper Mountain crew crosscut Crown-granted claims crushing cubic yards dangerous occurrence Department of Mines deposits diamond drilling diorite District drift driven east East Kootenay electric employed Exploration fault feet geological Gold holes Iron Kamloops Kootenay Lake lease Lillooet limestone loaded lode magnetite mapping metals miles by road mill mine-rescue Mines Limited Mines Ltd Mining and Smelting Mining Division Minister of Mines Nanaimo Nelson occur Omineca operations orebody outcrop Petroleum placer plant portal production pyrite Quantity quarry quartz Riondel rock samples seam shaft shear Silver Silver-lead-zinc Slocan slope smelter stope superintendent surface Survey Texada Island tons Trail Triassic trucks Tulsequah underground Valley Value Vancouver Island vein Victoria zinc zone