This Killarney, however, sits in County Kilkenny, and the earthwork here is a reminder that the ringfort, known in Irish as a ráth or lios, was once the most common form of rural settlement across the entire island. These circular enclosures, defined by one or more earthen banks and ditches, served as farmsteads during the early medieval period, roughly between the fifth and twelfth centuries, providing a defended space for a family, their livestock, and their daily life.

Beyond its location in this quietly homonymous townland, the specific history of this particular enclosure remains, for now, largely unrecorded in publicly available sources. What can be said is that ringforts of this kind are distributed right across the Kilkenny landscape, reflecting the dense agricultural settlement of the early medieval countryside. Many have survived only as low, grass-covered banks, their form most legible from above or in low winter light when shadows throw the earthworks into relief.