He points out that the size and shape of this imprint are a close match for that of Stone 62 at Stonehenge, that a detached fragment of bluestone found in stonehole 091 is the same rock type as Stone 62, and suggests that Stone 62 may once have stood at Waun Mawn.
"Stonehole 091 (1.7m north–south x 1.2m east–west x 0.3m deep) was large enough to be visible as a slight circular hollow on the ground surface prior to excavation. On excavation, it was found to be teardrop-shaped in plan with a long, shallow ramp on the south side widening as it leads to a circular pit. In its initial form, it was 1.33m north–south x 0.82m east–west, later enlarged when the standing stone was removed.
The primary fill of mottled orange and yellow-brown silt surrounds a central area in which the imprint of a standing stone has survived. This is a pentagonal impression with each of its five sides between 0.38m–0.47m long, giving the standing stone a diameter of over 0.6m.
Two narrow slots just beyond the northeast side of the pentagonal impression, one east– west and the other north–south, could be voids left by packing stones removed when the stone was dismantled. However, a more satisfying possibility is that these are marks left by wooden levers inserted against the base of the stone to help topple it southwards.
The standing stone was removed along a ramp to the south, the same direction from which it was erected. Its extraction hole was then filled with a sequence of secondary fills containing over 40 struck dolerite flakes. One of these was a large stone flake (22.9cm x 8.4cm) aligned longitudinally along the eastern side of the extraction ramp. With its weathered cortex on its exterior face, it may have been an unintentional removal, detached from the standing stone as it was pulled out of the hole. As with all the other flakes from stonehole 091, it is of unspotted dolerite.
Artefacts found in close proximity (within 2–3m) of stonehole 091 consist of a flint scraper (SF40), a piece of worked flint (SF1) and a trimmed circular mudstone disc (SF3). The mudstone disc is very similar to three such artefacts found in Neolithic levels at Carn Goedog megalith quarry."
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