In a field of pasture near Clonagh in County Limerick, a ringfort that was once clearly mapped now survives only as a subtle depression and a low scarped edge, the kind of thing you might walk across without quite registering what you were standing on. Ringforts, sometimes called raths, were the most common form of rural settlement in early medieval Ireland, typically consisting of a circular earthen bank enclosing a farmstead or dwelling. Most were built between roughly 500 and 1000 AD, and tens of thousands once dotted the Irish landscape. This one has been worn down considerably, but it has not vanished.

The 1923 Ordnance Survey six-inch map recorded the site as an embanked circular enclosure with a diameter of approximately 25 metres. By the time field surveyor Denis Power compiled his notes, uploaded in August 2011, that original form had been partially levelled, likely through generations of agricultural activity on the surrounding pasture. What remains is a roughly oval area measuring 18.2 metres north to south and 17 metres east to west, defined by a scarped edge, essentially a cut or slope in the ground surface, standing about 0.4 metres high and nearly 6.6 metres wide. An external fosse, which is a shallow ditch that would originally have reinforced the enclosure's boundary, survives in part around the north-northeast to southwest arc of the monument, measuring around 2.1 metres wide and 0.2 metres deep. The site sits near the foot of a south-facing slope, with higher ground rising to the north and curving around toward the south-southeast, a sheltered and practical position typical of early medieval farmstead placement.

Because so little of the earthwork projects above the surrounding ground level, the site rewards slow, deliberate looking rather than a quick scan. The scarped edge is most legible when the light is low and raking, which makes early morning or late afternoon visits in spring or autumn the most productive. The pasture setting means the ground can be soft underfoot after rain, and the field is privately farmed land, so any visit should be approached with appropriate consideration. The fosse arc, though shallow, is visible as a faint linear hollow and offers the clearest confirmation that what you are looking at is deliberate human construction rather than a natural irregularity in the land.