| 1. | Construction of the open-pit mine began in January 2003.
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| 2. | The large open-pit mine is north of the town.
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| 3. | There are now no deep pit mines left in North East Derbyshire.
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| 4. | Bal1kesir province is famous for its olives, open-pit mines.
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| 5. | Open pit mining started at the Rowe mine in 1912.
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| 6. | It is also an open pit mine and produces copper.
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| 7. | Today the Udachny open-pit mines in the world.
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| 8. | The open-pit mining of porphyry copper deposits was adopted worldwide.
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| 9. | It is threatened by open-pit mining for gypsum.
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| 10. | Pre-open pit mining began in 1863 by Comstock Lode miners.
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