It is a rath, the Irish term for a ringfort, which was a type of enclosed farmstead used across early medieval Ireland, typically from around the sixth to the twelfth century. Thousands survive in varying condition across the island, but each one marks the site of a household, a family, a working life organised within a circular boundary of earth and sometimes stone.

This particular example, recorded in Doonvullen Lower, takes an oval form measuring roughly nineteen metres north to south and twenty-two metres east to west. It is defined by a scarped edge, meaning the interior ground has been cut away or built up to create a distinct raised lip, here about 1.15 metres high and 3.5 metres wide. Beyond that runs an external fosse, a shallow surrounding ditch, nearly nine metres across at its widest and less than half a metre deep. That fosse, recorded by surveyor Denis Power and uploaded to the national record in November 2013, is waterlogged along its south-eastern to northern arc, a condition likely encouraged by the generally wet character of the surrounding land. Along the south-western side, cattle have been grazing close to the monument for long enough to erode the base of the scarp, rounding off what would once have been a crisper earthen profile.

The site sits in enclosed farmland with a restricted view of the surrounding landscape, which makes it less immediately legible than ringforts on elevated ground. There is no dramatic prospect to orientate the visitor, and the monument itself is subtle rather than imposing. The waterlogging in the fosse means the ground around the northern portion can be particularly soft underfoot, especially in winter or after prolonged rain, and the south-western arc where the scarp has been worn down by livestock requires some care to read correctly. Anyone approaching should look for the slight but consistent rise of the earthen bank and the broader depression of the ditch beyond it, rather than expecting an obvious circular mound.