This one offers nothing so straightforward. In a pasture on a west-facing slope in County Limerick, the earthworks of two possible enclosures have been so thoroughly levelled that there is nothing whatsoever to see at ground level. The site exists, in any meaningful sense, only from the air.

The enclosures first came to light through an oblique aerial photograph, reference CUCAP AVT004, taken on 20 July 1968 as part of the Cambridge University Collection of Aerial Photography, a systematic programme that captured vast amounts of Irish and British archaeology invisible to anyone standing in a field. No surface remains have ever been recorded on the ground. A subsequent Ordnance Survey Ireland orthophoto from 2005 to 2012 revealed a cropmark, the differential growth of vegetation over buried features that can betray the outline of a ditch or bank to a camera overhead, in the rough shape of a sub-triangle. Archaeologists have noted, however, that this particular mark may simply follow an old watercourse through the field, meaning it could be natural rather than human in origin. More compelling is a second cropmark, rectangular in plan and measuring approximately 50 metres on its north to south axis, visible in the north-east corner of the same field. This one is bisected by the public road running north to south through the area, and it appears to connect directly with the moated site of Fanningstown Castle, which sits roughly 50 metres to the east. A moated site, to clarify the term, is typically a medieval enclosed farmstead or manorial complex surrounded by a water-filled ditch. The rectangular enclosure's relationship to that castle complex suggests it may have formed part of the same medieval arrangement, perhaps a yard or an attached compound of some kind. The cropmark remained visible on a Google Earth image taken as recently as 19 November 2019.

For anyone visiting the area, Fanningstown Castle itself is the tangible anchor point, and the field in question lies immediately to its west. The enclosures are not signposted and the pasture offers no visible trace of what the aerial record suggests lies beneath. The cropmarks that revealed this site are most legible during dry summers, when moisture stress on the grass or soil above buried features creates tonal differences detectable from above. A visitor on foot will find the landscape quietly unremarkable, which is, in its own way, the point.