The site is, in the most literal sense, an absence.

The Ordnance Survey's third edition six-inch map, published in 1946, recorded a circular enclosure here, roughly 35 metres in diameter, encircled by a substantial ditch. Such features are generally understood to be ring forts, or raths, the enclosed farmsteads of early medieval Ireland, typically bounded by an earthen bank and ditch that defined a household's territory and offered a degree of protection for people and livestock. At Graigueawoneen, local accounts indicate that the monument was levelled around 25 years before the site was formally recorded, meaning the earthworks were almost certainly still standing within living memory. The ditch, described as large, would once have been a conspicuous feature on the ridge. Now there is no visible surface trace. A separate site, classified as a cashel, a stone-built enclosure of broadly similar function, lies to the south-west and survives as a companion record in the same townland.

What makes this particular entry quietly uncomfortable is how ordinary the circumstances of its disappearance appear to be. The levelling of ring forts across Ireland during agricultural improvement was not unusual, especially through the mid to late twentieth century. Many hundreds were removed to consolidate fields or ease the passage of machinery. The Graigueawoneen enclosure is notable less for what it was than for the fact that its loss was recent enough to be remembered locally, and recent enough that the 1946 map still carries its outline, a circle drawn over ground that is now indistinguishable from the pasture around it.