| 11. | Open cast quarrying provides quicker extraction of raw block dimension stone whilst maintaining its integrity.
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| 12. | A second tin boom came around the 16th century when open cast mining was used.
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| 13. | Covering nearly 30 km?it is the second largest open cast mine in the world.
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| 14. | The master plan envisaged large mechanized open cast mines.
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| 15. | At first, the mines were open cast, because the ore veins were on the surface.
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| 16. | There is some open cast workings at Mount View.
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| 17. | The plan completely dropped the urgently needed ban on further extension of open cast mining.
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| 18. | It is a beautiful village near Pandaveswar surrounded by " Open Cast Coal Mines ".
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| 19. | At one time, it was the largest open cast mine in Europe and was 500ft deep.
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| 20. | Perryfield Quarry is found towards the middle of the Island and being actively open cast quarried.
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