Ringforts, roughly circular enclosures defined by earthen banks and ditches, were built in their tens of thousands across Ireland, most of them during the early medieval period, and traces of them turn up regularly in otherwise unremarkable farmland. This particular arc, however, has a more ambiguous character. It appears on no historical map, neither the Ordnance Survey's six-inch sheets of 1837 nor the revised twenty-five-inch edition of 1913, both of which were generally attentive to earthworks of any age. Its existence only came to light when aerial photography revealed something circular in the grass below.

When the site was examined on the ground in 1983, investigators found a low curvilinear earthen bank running from the south-west around to the north-west, with slighter ridging continuing the apparent arc toward the north-east and east. There was no external fosse, the ditch that typically surrounds a ringfort and whose spoil was used to build the bank, and no internal features of any kind were recorded. The absence of a fosse is telling. Without one, the case for a genuinely ancient enclosure weakens considerably. Current thinking is cautious: the earthwork is probably not a ringfort at all, but rather a remnant of the field system and cultivation ridges that shaped this landscape after 1700. The curving bank, now grown over with bushes and visible on more recent satellite imagery, may simply reflect the practicalities of post-medieval farming rather than the defended homestead of an early Irish family. It sits in the uncertain category that archaeologists sometimes call "doubtful antiquity", a place that looks like history but may be something rather more mundane.