That discrepancy is one of the quieter puzzles this site presents to anyone paying attention.

The enclosure is D-shaped, measuring roughly 22 metres north to south, and is defined by a bank of earth and stone about one and a half metres wide and just 0.6 metres high. A fosse, the external ditch that typically accompanied such a bank, survives on the western side only. A rath is the Irish term for this kind of enclosed farmstead, a form of settlement used across Ireland from roughly the early medieval period, where a family and their livestock would have lived within a protected circuit. What makes this example quietly odd is a cartographic inconsistency: the first-edition Ordnance Survey six-inch map, produced in the nineteenth century, depicts the enclosure as square rather than D-shaped. Whether the ground itself has changed, or whether the surveyors simply interpreted a degraded bank according to their own conventions, is not recorded. There is no visible entrance feature, which adds to the sense of a place that has closed itself off over time. The site also sits within a loose cluster of similar monuments, with two further ringforts lying to the east and south-west, suggesting that this stretch of upland was once rather more populated than its current isolation implies. A stream runs to the east, which would have made this slope a practical choice for early settlement.