| 1. | In contrast, the immediately surrounding countryside is underlain by Old Red Sandstone.
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| 2. | Burray is made up of Old Red Sandstone of the Devonian period.
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| 3. | The castle was built of Old Red Sandstone and local grey limestone.
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| 4. | Bigsweir Woods are sited on Devonian Old Red Sandstone and quartz conglomerate.
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| 5. | The castle is predominantly built of local old red sandstone and limestone.
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| 6. | The island is made up of Old Red Sandstone with some basaltic intrusions.
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| 7. | Of these books, perhaps " The Old Red Sandstone " was the best-known.
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| 8. | Like Dartmoor, it is a granite plateau, whereas Exmoor is Old Red Sandstone.
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| 9. | There are also small Old Red Sandstone deposits and granite intrusions.
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| 10. | Rocks of the Devonian Period are also referred to as the Old Red Sandstone.
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