Today, a concrete yard and modern agricultural buildings occupy what was once Lissaniska, a name derived from the Irish Lios an Uisce, meaning Fort of Water. The earthwork survives now chiefly as a cartographic memory and a faint curve of ground, the kind of place that repays attention precisely because so little of it remains.

Ringforts are enclosed farmsteads of the early medieval period, typically circular earthen or stone enclosures that served as the defended homesteads of farming families across Ireland between roughly the fifth and twelfth centuries. Lissaniska was recorded in the Ordnance Survey Name Books for Cahernarry parish, which describe it as circular, composed of earth, with a green flat surface approximately two chains, or forty metres, in diameter and about three feet, roughly a metre, in height. The compilers noted that its position in a low plain meant it was not in view of any other forts, an observation that quietly sets it apart from the many ringforts that commanded elevated ground. By 1840, when the Ordnance Survey produced its six-inch map, the fort was annotated as Lissaniska and shown as a sub-circular enclosure, though the public road had already clipped its south-western edge. The 1897 twenty-five-inch map recorded an interior diameter of approximately thirty-five metres and an exterior of around forty-three metres, defined by a scarp rather than a substantial bank. Aerial photographs from 2004 and 2005 still show the curving line of the enclosure and a building standing within its centre, but by 2019 the monument had been largely subsumed beneath concrete.

There is little to see on the ground today, and access to the site itself is not possible given that private farm buildings now cover it. The value here is perhaps for those interested in how thoroughly an ancient monument can be absorbed into a working landscape within a few decades. The location immediately north of the R12 is straightforward enough to identify on modern mapping, and the 1840 and 1897 Ordnance Survey maps, both freely available through the OSi historical map viewer, allow a patient reader to trace the original outline against the present terrain. The name Lissaniska, at least, persists in the record, carrying the suggestion of wet or waterlogged ground that may have influenced where someone chose to build here more than a thousand years ago.