In a pasture on a gentle south-west-facing slope at Ballymacotter in County Cork, a ringfort once stood, a type of enclosed circular settlement that was the most common form of farmstead in early medieval Ireland. It has left no visible trace on the ground whatsoever, yet the field retains its own quiet memory of the place. Locally, the land is still called "Pairc a Liosa", meaning roughly "the field of the fort", and that name alone is enough to confirm that people living here knew exactly what had once occupied this spot, long after the earthworks themselves had vanished.

The earliest documentary record of the site comes from the Ordnance Survey six-inch map of 1842, which shows a circular enclosure of roughly thirty metres in diameter. That survey, conducted with considerable thoroughness across the whole island, captured many earthworks that were already under pressure from agricultural improvement, and in some cases, as here, the map became the most lasting record of a feature that would not survive the following century intact. By 1940, when the local historian Power wrote about the site, it was already being described as a former lios, the Irish word for a ringfort of this kind, noted as being of circular outline and small size. The word lios carried weight in local tradition; communities tended to remember these enclosures even when the banks were long gone, partly because folklore attached considerable significance to disturbing them.