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A large drilling machine makes holes in the rock wall so explosives can later be inserted. Exporing the mine tunnels at 1300 meters below ground. Oyu Tolgoi Copper Mine project. Mongolia.

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Filename
Mongolia main_201.jpg
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Jonathan Browning
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4300x2866 / 1.8MB
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A large drilling machine makes holes in the rock wall so explosives can later be inserted. Exporing the mine tunnels at 1300 meters below ground. Oyu Tolgoi Copper Mine project. Mongolia.