The Ordnance Survey six-inch maps record an oval enclosure, roughly 30 metres along its north-east to south-west axis and around 20 metres across, but on the ground today there is nothing to see. No bank, no ditch, no visible trace of any kind survives at the surface.

Ringforts, sometimes called raths, were enclosed farmsteads typically surrounded by one or more earthen banks and ditches. They were built and occupied mainly during the early medieval period, roughly between the fifth and twelfth centuries, and they remain one of the most common archaeological monument types across Ireland. The example at Ballinphuill is modest in scale even by those standards, its oval footprint suggesting a single-family enclosure rather than a high-status site. What makes it quietly notable is precisely its invisibility. The OS six-inch mapping, carried out in the nineteenth century, captured the enclosure at a moment when it was still legible in the landscape, and that cartographic record is now the only evidence it ever existed at all. A second ringfort survives approximately 200 metres to the south-east, which raises the possibility that this part of Ballinphuill once supported a small cluster of early medieval settlement, farms close enough to be neighbours across the hillside.