Across every edition of the OS six-inch map, the most detailed large-scale mapping of the Irish countryside, this slight rise in the earth simply does not appear. It exists, but it was overlooked, or perhaps never noticed at all.

What is there amounts to a modest but legible shape: a roughly circular raised area about thirty metres across, defined not by a wall or ditch in any obvious sense but by a low, broadly sloping scarp, the kind of gradual stepped edge that can read as nothing more than a change in the field's drainage if you are not looking carefully. The external height reaches only about forty centimetres, and the scarped bank itself is between two and four metres wide. An enclosure of this kind, a defined circular space set apart from its surroundings by an earthen boundary, would typically have served as a farmstead or settlement enclosure in early medieval Ireland, perhaps enclosing a house, outbuildings, and a small yard. Here, though, the original entrance has been lost entirely, absorbed into the accumulated centuries of farming, and a later north-south field boundary has been built up against the eastern edge, cutting across the older feature without any apparent awareness of what it was abutting.