It is easy to miss, the kind of feature that registers only as a slight unevenness underfoot, and yet its proportions are deliberate: roughly 32 metres across, shaped by human hands into a form that would have been immediately legible to anyone living in early medieval Ireland.

A survey carried out in 1976 recorded the site in some detail. At that point, the raised circular area was still enclosed by a low bank of earth and stone, with an intervening fosse, a defensive ditch dug to separate the inner and outer elements of the earthwork, and a further outer bank beyond that. The original entrance faced east, a common orientation for Irish ringforts, which are typically understood as enclosed farmsteads rather than military fortifications, though the boundary between the two functions was never entirely clean. By the time the site was examined more recently, the outer bank had been levelled, likely lost to agricultural activity over the intervening decades. What remains is a scarp, a steep earthen slope rising between one and two metres, with a recut fosse at its base measuring around 2.2 metres wide and up to 0.8 metres deep. The recutting suggests someone, at some point, chose to clean out or re-establish the ditch, though whether this was done for drainage, land management, or some other purpose is not recorded.

The gradual erasure of the outer bank is a familiar story across the Irish midlands, where ringforts have been quietly disappearing from the landscape for generations, flattened by ploughing or simply absorbed into the surrounding ground. What survives at Corrabola is a partial record, enough to read the original logic of the place, but not enough to recover it whole.