It is listed, catalogued, and given a grid reference, yet nobody can say with confidence what it actually is, or whether anything of it remains above ground. That kind of suspended uncertainty is rarer than it sounds in Irish archaeology, where even heavily degraded sites tend to leave some impression on the landscape.

The only firm evidence is cartographic. The Ordnance Survey's six-inch map of 1842 marks the spot with the placename "Cahereen", a diminutive form of the Irish "cathair", meaning a stone fort or cashel, which is a type of ringfort built from unmortared drystone walling rather than earthen banks. The field itself was recorded under the name "Parknacaheragh", a compound that carries the same root and suggests local memory of a stone enclosure went back well before the surveyors arrived. Crucially, the 1842 map does not hachure the site, meaning the cartographers did not draw the small radiating lines they typically used to indicate an upstanding earthwork or mound. Whatever was there may already have been reduced by that point, or the feature may simply have been too slight to warrant the notation. No visible surface trace has been recorded since.