The four surviving stones at Waun Mawn are of unspotted dolerite, and possibly derive from outcrops 3km to the south-east at Cerrigmarchogion on the Preseli ridge (Bevinset al.2014). 1
tags:
links: archaeology geology
connected ideas:
The Original Stonehenge? A dismantled stone circle in Presli Hills of west Wales | Syndication Link↩︎