By 1872, it was described as "nearly obliterated", a rath, which is the Irish term for a ringfort, those circular enclosures of earthen banks and ditches that were the standard farmstead form across early medieval Ireland, on a holding then known as Prospect Farm. The man who noted it was John George Augustus Prim, a Kilkenny-based historian and antiquary who published a map marking the feature as 'A' in 1872 to 1873. That map is now the sole direct evidence that this particular enclosure ever stood upright.

What makes the site quietly puzzling is that it appears nowhere else. The first edition Ordnance Survey six-inch map of 1840, which captured the Irish landscape in remarkable detail, carries no trace of it, nor does the revision carried out between 1899 and 1902. Modern satellite imagery shows nothing either. This leaves a narrow and intriguing gap: Prim was working thirty-odd years after the OS surveyors, and yet he recorded something they apparently did not. Scholars who have examined his map consider it drawn with reasonable accuracy, which tips the balance slightly in favour of the enclosure having been a real, if low and degraded, earthwork in the 1870s, possibly reduced to little more than a slight rise or a faint bank. There is a further complication: a cluster of related enclosures exists in the immediate area. Two others, identified from cropmarks observed in 1971, sit roughly 100 metres to the south-east, and a third cropmark enclosure lies about 180 metres to the north-east. Cropmarks form when buried archaeological features affect the growth of crops above them, making the outlines of long-vanished structures briefly visible from the air under the right conditions. It is possible that Prim was actually describing one of these rather than a wholly separate site.

The result is an enclosure that exists most clearly as an archival question: a mark on a Victorian map, a label on a farm, and a small unresolved argument about identity and location on the Kilkenny landscape.