What makes it unusual is not any dramatic ruin but precisely the opposite: a place whose identity has been slowly erased by time and changing land use, leaving scholars uncertain whether they are dealing with an ancient earthwork or something altogether different.

The earliest cartographic record, the Ordnance Survey six-inch map of 1838, shows the hilltop as a subtriangular enclosed area of bushes, an irregular shape that already hints at something deliberate rather than accidental. By the time the OS 1:2500 plan was surveyed between 1912 and 1916, the feature had transformed on paper into a circular hachured enclosure of roughly 38 metres in diameter, now planted with deciduous trees and ringed by a further line of trees beyond its edge. A rath is a type of ringfort, typically a raised circular earthwork enclosed by an earthen bank and ditch, common across Ireland from the early medieval period. A tree-ring enclosure, by contrast, is a more ambiguous category, sometimes a deliberate planting around an older earthwork, sometimes a feature in its own right. By the 1945 revision of the map, the trees had gone entirely. When archaeologists inspected the site in April 1984, only a faint dark band of vegetation betrayed where the enclosure had once been; no earthwork, bank, or structural trace was visible above ground. The site remains unclassified, formally described as possibly a rath or a tree-ring enclosure, a designation that is itself a kind of archaeological honesty about the limits of the evidence.