Roughly fifteen metres across, the area retains the faint outline of an enclosure, the kind of earthwork, typically a ringfort or enclosed settlement, that once served as a farmstead or place of local significance in early medieval Ireland. What makes this particular example quietly unusual is the combination of features still legible in the landscape: two low grass-covered banks to the north, separated by a shallow fosse, a simple ditch dug between embankments, and a distinct entrance gap to the northeast measuring around three and a half metres wide.

The southern edge of the enclosure tells a different kind of story. A low scarp there, roughly a third of a metre in height, marks where turf cutting has taken place over the years, gradually eating into the bank and reshaping what survives. Peat extraction was a practical necessity across much of rural Ireland for centuries, and it has quietly altered or erased countless archaeological features in boggy ground like this. That the enclosure at Foildarrig remains at all is partly a matter of luck. More striking still is what occupies its south-western quadrant: a holy well, the kind of site that in Ireland often carries associations far older than Christianity, with local traditions of healing, pattern days, and seasonal gathering sometimes persisting for generations around a single spring or pool. The presence of both an enclosure and a holy well within the same small, low-lying area suggests this was once a place of some local consequence, though the precise nature of that significance remains unrecorded.