The enclosure measures thirty-six metres across in both directions, a consistency that speaks to deliberate construction rather than accident of landscape. What makes it worth pausing over is the variation in how its boundary was built: an earthen bank to the north-east and south-west, still standing two metres high on the interior face, gives way elsewhere to a scarp, a near-vertical cut into the slope, rising to 2.8 metres. A slight internal lip runs along part of that scarped edge, and the external fosse, the defensive ditch dug outside the bank, survives as a shallow depression to the south and south-west.

This is a rath, the most common monument type in the Irish countryside. Raths are ringforts enclosed by earthen banks rather than stone, and they were typically the enclosed farmsteads of Early Medieval Ireland, broadly from the fifth to the twelfth centuries. The farmer and their household would have lived inside, with the bank and fosse providing a degree of security against livestock raids as much as anything more dramatic. The entrance here, four metres wide, faces to the east-north-east, an orientation that recurs across Irish ringforts and may reflect a preference for morning light or simply a practical response to prevailing wind. A later cattle gap to the north suggests the enclosure has continued to serve agricultural purposes long after its original function was forgotten, with working farmers cutting through the bank for convenience rather than ceremony. The interior slopes downward to the north, following the natural gradient of the hillside below Claragh Mountain.