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Barring down in face of raise in narrow vein
Arthur Lakes Library Russell L. and Lyn Wood Mining History Archive United States. Bureau of Mines
Arthur Lakes Library
Russell L. and Lyn Wood Mining History Archive
United States. Bureau of Mines
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1900?-1999?
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Abstract
Two miners are barring down in the face of a raise. Barring down is the practice of prying off loose rock after blasting to prevent rockfalls.
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