But the dip at the centre of this roughly circular enclosure at Lissavarra, and the low scarped edge that traces most of its perimeter, mark out a rath, the Irish term for a ringfort, the kind of enclosed farmstead that served as the basic unit of rural settlement across early medieval Ireland. Thousands were built between roughly the fifth and twelfth centuries, typically to protect a farming family, their livestock, and their stores. Most survive only as subtle impressions in the landscape, and this one is no exception.

The enclosure at Lissavarra measures approximately 31 metres north to south and 32 metres east to west, making it a fairly typical example of its type. A scarped edge, essentially a cut or trimmed bank of earth, defines the boundary from the west-northwest around to the south, rising to about 0.8 metres in height and spanning roughly 7 metres in width. On the northern and northeastern side, a fosse, an external ditch, runs alongside, though at only 0.3 metres deep and 1.5 metres wide it is considerably worn. The southern and west-northwestern portions of the enclosing earthwork were partially levelled when a field boundary that had been cutting across the enclosure was removed around 1980, a reminder that agricultural change in the late twentieth century reshaped many such sites as much as any earlier disturbance. The record was compiled by Denis Power and uploaded in August 2011.

The site sits on a gentle northeast-facing slope and the interior pasture dips down toward the centre, which can help a careful observer trace the original shape even where the banks have been reduced. There is no public monument or interpretive signage noted here, and access would depend on landowner permission, as is typical for field monuments of this kind in rural Limerick. The enclosure is most legible in low winter light or after rain, when the slight changes in ground level cast enough shadow to reveal the surviving earthworks against the surrounding grass.