Most prehistoric monuments, however modest, found their way onto those meticulous nineteenth-century surveys in one form or another. This ring-barrow in Ballynaclogh, County Limerick, slipped through entirely, and for a long time it was almost impossible to confirm it existed at all.

A ring-barrow is a low, roughly circular earthen mound, typically dating to the Bronze Age or Iron Age, enclosed by a surrounding ditch that gives the monument its definition. The ditch here is what makes the Ballynaclogh example a "ditch barrow" specifically. The site sits on poorly drained reclaimed grassland, the kind of low-lying agricultural land that can blur and soften earthworks over centuries. It lies 35 metres northeast of a related barrow recorded under the reference LI024-227. When aerial analysts examined a Digital Globe orthoimage captured between 2011 and 2013, the monument was barely discernible. It was only when a more recent Google Earth image, taken on 18 November 2018, was examined that the ring-barrow became clearly visible. The record was compiled by Caimin O'Brien, drawing on details provided by Edmond O'Donovan, and uploaded to the national record in September 2020.

Because the site sits on reclaimed grassland with poor drainage, visibility on the ground is likely to be unreliable, and the monument's low profile means it rewards aerial or satellite interpretation more than a direct visit. The monument is best appreciated by examining the orthoimage attached to the national record rather than by expecting a dramatic earthwork on the surface. Anyone exploring the wider Ballynaclogh area should be aware that access across agricultural land requires landowner permission, and that the boggy, wet ground typical of this kind of reclaimed pasture can make conditions difficult underfoot at any time of year.