Dyfed Archaeological Trust Historic Environment
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Primary Reference Number (PRN) : 2655 Trust : Dyfed Community : St Davids and the Cathedral Close Unitary authority : Pembrokeshire NGR : SM73732509 Site Type (preferred type first) : Iron Age?;early Medieval? Defended Enclosure / Early Medieval Enclosed Settlement Status : Scheduled Monument
Summary : Clegyr Boia is a small defended enclosure occupying the summit of a rocky outcrop that rises 10m-20m above the surrounding plateau of the St David's Peninsula. The outcrop summit has a slightly dished interior around which lies the rampart. The rampart itself rises c. 0.6m above the interior and varies in width between 2.7m and 4.6m. It is made up of stone rubble and earth revetted with stone blocks. It encloses a roughly rectangular area approximately 85m SW-NE and 22m SE-NW. Excavation in 1952 by Williams showed the entrance at the easily approachable southwest end to consist of a pair of flanking walls 6.1m long leading to a pair of opposed elliptical embrasures (guard chambers?) each of which has a post-hole at each end. Charcoal associated with the entrance returned calibrated radiocarbon dates of 760-380 BC and 350BC-AD400. Williams' excavations and those of Baring Gould in 1903 revealed artefacts of Neolithic date as well as circular and rectangular structures - it is these remains that Clegyr Boia is most celebrated, rather than the later prehistoric enclosure.
The whole site is now under tussocky grass and is difficult to make out. It survives in good condition. Old quarry pits around the periphery of the site do not seem to have damaged the enclosure itself.
K Murphy 1 September 2006 - compiled from several sources.