Ringforts, known in Irish as raths when constructed primarily from earth and stone, were the most common settlement type in early medieval Ireland, typically serving as enclosed farmsteads for a single family and their livestock. This one, on a north-east-facing slope at Kilbeg East, is a particularly legible example of the type.

The site was recorded by Denis Power and uploaded to the national record in August 2011. Its measurements give a clear picture of the original engineering effort. The enclosed area is roughly circular, running 32 metres north to south and 30 metres east to west. The bank that defines this space rises to an internal height of 0.75 metres but presents a considerably more imposing external face of 2.3 metres, the difference reflecting the depth of the fosse, or defensive ditch, dug immediately outside it. That fosse is 4 metres wide and remains waterlogged, which suggests the original builders understood the drainage characteristics of the slope. Beyond the fosse runs a second, concentric earthen boundary, lower than the inner bank but still substantial, with an external height of 1.5 metres. This kind of doubled enclosure is not unusual in Irish ringforts and may indicate a higher-status occupant, or simply the practical need to manage cattle in a separate outer enclosure. There are two access gaps: a relatively narrow one of 1.7 metres cutting through both the bank and the outer field boundary on the east side, and a wider gap of 3.2 metres through the inner bank alone on the north-north-west.

The fort sits in working pasture, so access would require the landowner's permission. The interior is in rough grazing and slopes gently downward toward the north. The waterlogged fosse is most visible in wetter months, when the dip between the inner bank and the outer boundary holds standing water and the double-ring structure becomes easier to read from the surrounding field. The eastern entrance gap, at just under two metres wide, is narrow enough that you would pass through it almost without noticing unless you were looking for it; the wider north-north-west gap in the inner bank is more apparent from inside the enclosure. Standing in the interior and looking outward, the exterior height of the main bank, over two metres of earth and stone, gives a reasonable impression of how enclosed and defensible this space would once have felt.