Stonehenge may have been first erected in Wales, evidence suggests

Evidence that bluestones were quarried in Wales 500 years before they were put up in Wiltshire prompts theory that Stonehenge is ‘second-hand monument’

Evidence of quarrying for Stonehenge’s bluestones is among the dramatic discoveries leading archaeologists to theorise that England’s greatest prehistoric monument may have first been erected in Wales.

It has long been known that the bluestones that form Stonehenge’s inner horseshoe came from the Preseli hills in Pembrokeshire, around 140 miles from Salisbury Plain.

Now archaeologists have discovered a series of recesses in the rocky outcrops of Carn Goedog and Craig Rhos-y-felin, to the north of those hills, that match Stonehenge’s bluestones in size and shape. They have also found similar stones that the prehistoric builders extracted but left behind, and “a loading bay” from where the huge stones could be dragged away.
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He recalled the moment he looked up the near-vertical rock-face and realised that this was one of the quarries. “Three metres above us were the bases of these monoliths that were actually sitting there ready simply to be lowered out of their recesses,” he said.
“It’s the Ikea of Neolithic monument building. The nice thing about these particular outcrops is that the rock has formed 480m years ago as pillars. So prehistoric people don’t have to go in there and bash away … All they have to do is get wedges into the cracks. You wet the wedge, it swells and the stone pops off the rock.”