Coetan Arthur

Coetan Arthur dolmen, also known as Arthur's Quoit is the remains of a Neolithic burial chamber. It dates from around 3000 BC. The site, situated on the hillside close to St Davids Head in Pembrokeshire, Wales, is the collapsed chamber of what is presumed to be a passage grave which also has a round barrow. The massive capstone measures around by and is supported on one side by an orthostat approximately in height.
The headland is in the care of the National Trust and the site is a scheduled ancient monument.