| 11. | In 1904, Jackling recommended open pit mining, using steam shovels to load railroad cars.
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| 12. | The first open pit mine was located in Lac-Jeanine, Quebec.
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| 13. | Newmont plans to return to open pit mining in 2010 if drilling results are positive.
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| 14. | When Graniterock obtained the permit in 1983, it began to excavate a open pit mine.
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| 15. | The workings include a very large open pit mine, an underground mine and four concentrators.
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| 16. | An open pit mine began operation in 1882, and moved to underground mining by 1900.
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| 17. | It services a mining town ( the open pit mine is in this town ).
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| 18. | The Paroo Station lead carbonate open pit mine is located 30 kilometres west of Wiluna.
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| 19. | ACL mainly open pit mined chrysotile asbestos in the eponymously named town, Asbestos, Quebec, Canada.
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| 20. | Exhausted open pit mines may be refilled with tailings.
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