That, precisely, is what makes this site worth knowing about. A roughly circular enclosure once sat on the crest of this gently undulating east-west ridge, its diameter measuring around 58 metres, its northern half partly defined by a fosse, the term for a defensive or boundary ditch dug into the earth. It appears clearly on the first edition Ordnance Survey six-inch map of 1840, and again on the revised edition of 1906, where the fosse shows up in some detail. By the time anyone thought to record what had survived, the enclosure was already gone.

At some point during the 1970s or 1980s, according to local information, the monument was levelled. The field boundary that had run east to west from its eastern side was removed along with it. Late in the following decade, a house with a separate garage went up roughly 40 to 50 metres to the south, and the ridge became ordinary farmland. Circular enclosures of this kind are among the most common archaeological monument types in Ireland, often interpreted as the remains of ringforts, which were enclosed farmsteads used from the early medieval period onward, though some may be prehistoric in origin. What distinguished this one was not any surviving feature but the simple fact that it was documented at all, its outline fixed twice on paper before the ground was cleared. There is now no visible trace of it at ground level.