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8 Giant Man-Made Holes In The Earth

Schuyler J. Dievendorf | 29 May 2014 19:10
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Chile's Chuquicamata copper mine is considered the biggest open-pit copper mine in the world. With a depth of 850 meters it's the second deepest open-pit mine in the world, behind Bingham Canyon Mine. This has been an active mine since at least 550 AD, so they've had more than enough time to dig.

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