In an aerial photograph taken in July 1989, the cropmark of a fosse betrayed the presence of a pentagonal enclosure roughly thirty metres across. A fosse is a defensive ditch, and here the buried remains of one cause crops planted above it to grow at a slightly different rate to their surroundings, producing a faint but legible stain across the field that is invisible at ground level but resolves into a clear shape from altitude.

What makes this enclosure particularly notable is its geometry. The ringforts that survive in their thousands across Ireland are, as their name suggests, circular. A pentagonal plan is an unusual choice, or perhaps a practical adaptation to local terrain or the boundaries of an existing field system, within which this enclosure sits. That context matters: a field system recorded in the same area suggests a working agricultural landscape shaped over a long period, and the enclosure was part of it rather than isolated from it. Roughly a hundred metres to the north-west lies a possible ringfort, hinting that this corner of North Cork was, at some point, a fairly settled and organised place. Ringforts, despite the martial name, typically functioned as enclosed farmsteads during the early medieval period, roughly the fifth to the twelfth centuries, so their clustering in a landscape often reflects patterns of landholding and farming rather than warfare.