| 11. | Navigator planned to resume mining from open pit sources in January 2010.
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| 12. | Lihir Gold said mining will initially take place in two open pits.
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| 13. | Gravel and sand is mined in open pits in and near Century.
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| 14. | The district still produces copper, from the large Chino Mine open pit.
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| 15. | Their open pit copper mine was the richest in the country.
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| 16. | This can happen in open pit mines as well as in underground mines.
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| 17. | The Cresson mine open pits are located a few miles north of Victor.
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| 18. | Since it is an open pit mine it would disturb the natural environment.
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| 19. | Officials are particularly concerned about 15 open pit waste sites with safety problems.
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| 20. | The open pit operations are currently projected to extend to 2016.
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