The result is a rath, the Irish term for a ringfort, the most common surviving monument type in the Irish countryside. Ringforts functioned primarily as enclosed farmsteads, their banks and ditches marking status and providing a degree of security for a family and their livestock rather than serving any serious military purpose. What makes this particular example in Milltown North quietly interesting is the care visible in its construction details, and the fact that it has been boxed inside a small square field of its own, roughly thirty metres to a side, bounded by a dry-stone wall, as if later farmers recognised they were working around something worth preserving.

The enclosure is oval, measuring approximately 29.5 metres north to south and 22.5 metres east to west. Its bank stands about 1.1 metres above the interior and 1.55 metres above the exterior ground level, and is best preserved along its northern to south-western arc. The external fosse, or ditch, runs from the south-west around to the north and from the east-north-east back to the east, and is about 2.8 metres wide and 0.55 metres deep where it survives best. Within that fosse, a dry-stone boundary wall runs along the base and clips the outer edge at several points, an unusual refinement that would have helped define and stabilise the feature. The entrance, 3.2 metres wide, faces south-east and retains stone kerbing along its southern edge. The interior slopes downward toward the entrance and is now covered with mature deciduous trees. A comparable walled-in enclosure sits roughly 700 metres to the west-north-west, suggesting this part of the valley held at least two such enclosed settlements in the early medieval landscape. The record was compiled by Denis Power and uploaded in August 2011.

The ringfort sits in pasture on a slope running down toward a river valley, which means the ground can be soft depending on the season, and a dry spell makes the approach considerably easier. The containing field and its dry-stone boundary wall are themselves worth noting on arrival, since the arrangement of a prehistoric or early medieval monument inside a later rectilinear enclosure is relatively uncommon and implies a long-running awareness of the site. The tree cover inside the bank creates a noticeably different atmosphere from the surrounding fields, and the stone kerbing at the south-east entrance is one of the more legible surviving details at ground level.