THE SQUARE-SET METHOD OF STOPING AT BUTTE
From the view point of the mining engineer, the square-set method of stoping as practised at Butte, Montana, is one of the outstanding features of well conducted mining operations in that camp. The following information was obtained in the course of two months underground . work in the Granite Mountain mine, during the summer of 1920, which is one of the properties of the North Butte Mining Company, situated on the well known Speculator vein. Most of the information was derived from persona! observation and from discussions with various miners and with members of the staff.
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