| Over time the slate and sandstone rocks covering the granite were eroded exposing the granite in areas such as Dartmoor and Bodmin Moor. |
| Petroc founded churches in Little Petherick and Bodmin and in many parts of Britain, Wales and Brittany. |
| Occasionally, highly visible rocks seem to have been singled out for special attention, as with some of the natural tors on Bodmin Moor. |
| These joints are most clearly seen on exposed pieces of rock such as the Tors of Dartmoor and Bodmin Moor. |
| Towards the end of this period granite was formed beneath the overlying rocks of Devon and Cornwall, now exposed at Dartmoor and Bodmin Moor. |
| Bodmin monastery became one of the wealthiest Cornish foundations by the eleventh century. |
