This one at Corrabally, sitting on a north-facing slope in pasture, is modest in scale but quietly complete in its essentials: a roughly circular enclosure, about 27.5 metres north to south and 26.5 metres east to west, defined by an earthen bank still standing some 1.4 metres high and accompanied by a shallow external fosse, the ditch that would originally have reinforced the bank's defensive or enclosing function.

Ringforts, known in Irish as raths when they are earthen rather than stone-built, were the standard farmstead form of early medieval Ireland, used roughly between the fifth and twelfth centuries. They sheltered a family, their livestock, and their stores within a raised boundary that kept out wolves and opportunistic neighbours as much as organised raiders. The Corrabally example has two breaks in its bank, one to the east and one to the northwest, each about three metres wide; one almost certainly marks an original entrance, though which one is the earlier or more significant is not recorded. More intriguing is the possible presence of a souterrain in the interior. A souterrain is an underground stone-lined passage or chamber, typically used for cool storage, as a refuge, or both, and their existence beneath a rath is common enough to be considered a characteristic feature of the type rather than a curiosity. Whether the Corrabally souterrain is intact or only partially traceable beneath the turf is not confirmed.