| 'It's a single volcanic outcrop, 'rising from this vast sedimentary plain. | |
| 'It's this single volcanic outcrop, 'a kind of nursery of evolutionary difference. | |
| A dozen of them may inhabit one outcrop. | |
| All that stands between the young goat and the outcrop is a last cascade of bitterly cold water. | |
| But for Darvill and Wainwright what makes these Welsh bluestones really special are the springs which proliferate at the base of the outcrop, springs which were once seen as sacred. | |
| 'It's a single volcanic outcrop, 'rising from this vast sedimentary plain. | |
| 'It's this single volcanic outcrop, 'a kind of nursery of evolutionary difference. | |
| A dozen of them may inhabit one outcrop. | |
| All that stands between the young goat and the outcrop is a last cascade of bitterly cold water. | |
| But for Darvill and Wainwright what makes these Welsh bluestones really special are the springs which proliferate at the base of the outcrop, springs which were once seen as sacred. | |
| "Seek out hidden paths "Through snowbound rock outcrops? | |
| A lagoon is formed. It's a patchwork of coral outcrops and sand. | |
| And we know of several of these outcrops that were used to mine the basalt. | |
| But a few rare outcrops of 4-billion-year-old rock do remain. | |
| Huge outcrops of rock crumble and fall. | |
| "Seek out hidden paths "Through snowbound rock outcrops? | |
| A lagoon is formed. It's a patchwork of coral outcrops and sand. | |
| And we know of several of these outcrops that were used to mine the basalt. | |
| But a few rare outcrops of 4-billion-year-old rock do remain. | |
| Huge outcrops of rock crumble and fall. | |
| - Head for that outcropping. | |
| - Yeah, and the angle on the outcropping. | |
| But there was a pressure indentation by the creek bed... a stone was kicked over by the outcropping... and someone with a size 11-and-a-half boot has a crack in their heel. | |
| Follow the outcropping around... | |
| I see a slight outcropping. | |
| - Head for that outcropping. | |
| - Yeah, and the angle on the outcropping. | |
| But there was a pressure indentation by the creek bed... a stone was kicked over by the outcropping... and someone with a size 11-and-a-half boot has a crack in their heel. | |
| Follow the outcropping around... | |
| I see a slight outcropping. | |
