Coetan Arthur[1] dolmen, also known as Arthur's Quoit[2] (not to be confused with Carreg Coetan Arthur, near Newport) is the remains of a Neolithic burial chamber (also known as a quoit).[3] It dates from around 3000 BCE. 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 approximately 6 m (20 ft) by 2.5 m (8 ft 2 in) and is supported on one side by an orthostat approximately 1.5 m (4 ft 11 in) in height.
The headland is in the care of the National Trust and the site is a scheduled ancient monument.