Jack-leg drill operator in a silver mine shaft, approximately 2300 ft underground
Jack-leg drill in operation. The jack-leg drill operator drills a series of deep holes for explosive placement. The resulting ore is hauled to the ore train which takes it to the surface for crushing and refining into silver and other metals. Idaho.
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- © 2009 Mike Shipman.blueplanetphoto.com. All rights reserved.
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- Contained in galleries
- Industrial
