Fifty years earlier, their predecessors had recorded a neat circular enclosure, roughly thirty metres across, sitting on dry ground above the floodplain of the River Laune. On the later map, only the northern and eastern arcs were still worth drawing. What remained on the ground had lost its original shape and collapsed into something more like a D, its western side absorbed into an ordinary field boundary.

A rath, as this type of monument is classified, is an early medieval farmstead enclosed by one or more earthen banks and ditches, typically dating from somewhere between the fifth and twelfth centuries. Thousands once existed across Ireland; many have been quietly dismantled by farming, drainage, or simple neglect over the centuries. The Dungeel example measured about thirty metres in diameter when first mapped in 1846, and a denuded scarp, still standing roughly two metres high along the north-south line, gives some sense of what the original bank must have looked like. A field boundary running north to south along the western edge is all that now marks where the enclosure once closed. The interior has been heavily trampled and eroded by cattle, and there are signs of more deliberate disturbance too, with recent soil excavation visible across parts of the site.