What looks from a distance like a slight unevenness in the field turns out, on closer inspection, to be a carefully bounded space: nearly thirty-three metres across at its widest, defined on its southern and western sides by a scarp, a natural or cut slope, rising to around four metres in height, and on its northern and southeastern edges by a low earthen bank less than a metre tall. A stone wall follows the outside of that earthen bank to the east and southeast, adding a further layer of enclosure to what is already a quietly deliberate arrangement.

The place-name Cahermoanteen is itself suggestive. "Caher" or "cathair" in Irish typically refers to a stone fort or enclosure, a circular defended settlement of the early medieval period, and the physical remains here, with their mix of scarp, bank, and stone walling, fit broadly within that tradition of enclosed farmsteads and ringforts that were once scattered across the Irish countryside in their thousands. The combination of a natural ridge-end scarp used as part of the boundary, supplemented by earthen and stone construction, reflects a practical approach to enclosure: using the landscape's existing topography to do some of the work. The site sits in pasture today, its dimensions still legible even after centuries of agricultural use.