They noted no enclosure. That omission is quietly telling, because sitting beneath the pasture on that same summit is a roughly circular earthwork some 56 metres in diameter, apparently invisible to surveyors on the ground but legible from above, its outline traced by a fosse, the term for a ditch or trench that would once have defined and defended a boundary.

The enclosure was identified not through excavation or a ground survey but through satellite imagery, spotted and reported by a researcher named Ivor Kenny using Google Earth photographs taken in April and June of 2013. The circular form, typical of a class of enclosed hilltop sites found across Ireland and associated variously with settlement, ritual, or territorial marking, is clearest on the western side. A modern field boundary running roughly north-northeast to south-southwest cuts through the enclosure's eastern portion, blurring its outline on that side. The site does not exist in isolation on the hillside. Approximately 270 metres to the southeast lies a bullaun stone, a large boulder with one or more cup-shaped depressions ground into its surface, objects long associated with early Christian and pre-Christian practice in Ireland. Some 540 metres further to the southeast sits a cist, a small stone-lined burial box of a type most commonly associated with Bronze Age interment. The clustering of these features across a relatively compact stretch of Carlow upland suggests that this part of the landscape was meaningful to people over a long span of time, even if the precise nature and date of the hilltop enclosure itself remains unestablished.