Silver miners drill holes into bedrock 2300 ft underground
Two drill operators prepare to continue enlarging an adit in a silver mine, approximately 2300 ft underground. The holes drilled will be filled with explosives and the ore will be hauled to the surface for crushing and refinement into silver and other metals.
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- © 2009 Mike Shipman.blueplanetphoto.com. All rights reserved.
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- Industrial
