At roughly 23 metres long, 60 centimetres thick, and only 30 centimetres above the ground, this is not the kind of field boundary that announces itself. What makes it quietly arresting is what lies beyond its visible ends: the stones continue downward into the bog at both sides, meaning the full extent of the wall is unknown, swallowed by the accumulating peat.

Curvilinear field boundaries of this kind, walls that follow a curve rather than a straight line, are often associated with early medieval land enclosure in Ireland, though without excavation it is difficult to assign a firm date to any individual example. Bog growth in upland areas like this part of Kerry has been gradual over centuries, and a wall that now sits just proud of the surface may once have stood in open pasture, dividing grazing land or marking a territorial edge in a landscape that was more actively farmed than it appears today. The Sheen River valley below would have provided relatively sheltered ground, and the slopes above it were likely worked and divided long before the bog began to claim them back.