The bank is barely there in places, worn by centuries of grazing and drainage work to little more than a slight rise in the grass, yet its trapezoidal shape, roughly 37 metres north to south and 29 metres east to west, is coherent enough to read as a human-made boundary rather than a trick of the landscape.

Enclosures of this kind, defined by earthen banks and sometimes accompanied by a fosse or ditch, are a familiar feature of the Irish countryside, associated most often with early medieval settlement, though they could equally mark a farmstead boundary, a pastoral enclosure, or a site with ritual significance. What gives this one a particular character is the D-shaped annexe that adjoins it to the south, its bank now reduced to a barely traceable scarp only a few centimetres proud of the surrounding ground. An annexe of this form, curving out from a main enclosure, suggests the whole complex may once have had distinct functional zones, perhaps separating livestock from a domestic interior, or a working area from a more enclosed core. The main bank survives best along the eastern, southern, and western sides, where it still measures over four metres in overall width, though its interior height reaches only around twenty centimetres; the northern side has been considerably reduced. A second enclosure sits approximately eighteen metres to the north-east, hinting that whatever activity drew people to this corner of Kilmore was not confined to a single structure.