A 70m-diameter circular ditched enclosure identified as a cropmark in 1996 at Bayvil Farm, Eglwyswrw,
north Pembrokeshire, was initially thought to be a segmented-ditched enclosure, an early type of Neolithic
henge. Geophysical survey in 2012–13 and partial excavation in 2014 has shown it to be Late Bronze Age
ring-fort dating to the eleventh-tenth centuries BC and subsequently occupied during the Early Iron Age.
Late Bronze Age circular enclosures of this kind are well known in eastern England but this is the first
such ring-fort to be discovered in Wales. A medieval corn-dryer identified by geophysical survey was also
excavated which is probably to be associated with the probable traces of the medieval settlement of Bayvil,
associated with the redundant St Andrew’s Church which has possible medieval origins