That kind of quiet circularity, a place so defined by its ancient feature that the feature became the place, is not unusual across Ireland, but it does signal that what sits on this low Wicklow hill was once considered worth orienting oneself by.

The fort occupies a small natural platform at the summit of the hill, a position typical of the rath tradition. Raths, or ringforts, were enclosed farmsteads of the early medieval period, roughly the fifth to twelfth centuries, in which a family and their livestock lived within a banked and sometimes ditched perimeter. This example is circular, measuring twenty-five metres in diameter, and its defining bank of earth and stone survives to between 0.7 and 0.9 metres in height and up to 2.2 metres wide. In several places the bank retains a boulder revetment, meaning large stones were laid against its inner or outer face to hold the earthwork in shape, and two courses of this stonework are still visible. The entrance, positioned at the north-east, is 2.4 metres wide and framed by upright slabs. There is no surviving fosse, the encircling ditch that often accompanies such banks, and no obvious trace of internal structures remains above ground.