At Ballynaglogh in County Cork, a field on a north-facing slope is still known in Irish as "Páirc a Leasa", meaning roughly "the field of the fort" or "the field of the enclosure", a name that remembers something the ground itself has mostly forgotten. The enclosure it refers to was levelled around 1984, leaving only a low, barely perceptible undulation running from west to north-east across the pasture.

Before it was levelled, the site was legible on the Ordnance Survey six-inch maps as a semicircular field boundary, approximately seventy metres in diameter. Enclosures of this kind, often called raths or ring-forts, were the most common form of rural settlement in early medieval Ireland, typically consisting of an earthen bank and ditch enclosing a farmstead. The semicircular shape recorded here may reflect either the original form of the monument or the degree to which one side had already been eroded or absorbed into later field boundaries before it was ever mapped. What remained was enough to be recorded, plotted, and named, if not quite enough to survive the pressures of modern agricultural improvement.

Very little is visible at the site today. The surviving undulation in the pasture is slight, and without prior knowledge of what to look for it would be easy to walk across without noticing anything at all. The endurance of the Irish place name is, in a quiet way, the more durable record.