This one in Rathcannon, County Limerick, offers none of that. What may once have been an enclosure of some kind now leaves no visible trace on the ground at all, and its existence rests almost entirely on a single aerial photograph taken nearly four decades ago.

The site sits in pasture roughly 130 metres northeast of a watercourse that forms the townland boundary with Ballincurra. It does not appear on any of the Ordnance Survey Ireland historic maps, which means it was either never recorded by earlier surveyors or had already faded below the threshold of visibility by the time they passed through. It came to light, briefly and tentatively, through an aerial photographic survey carried out over the Bruff area in 1986, catalogued as Bruff 31, AP 5/2063, which flagged it as a possible enclosure. Aerial survey is one of the primary tools for detecting features like this, since crop marks and soil discolouration caused by buried ditches or banks can show up clearly from the air even when nothing is perceptible at ground level. Whatever the 1986 photograph captured, it had not resolved into anything more definitive by the time Martin Fitzpatrick compiled this record and uploaded it in May 2021. An Ordnance Survey orthophoto taken between 2005 and 2012 shows nothing, and a Google Earth image from September 2020 is equally blank.

There is, practically speaking, nothing for a visitor to see here, and that is rather the point of the record. The site is noted precisely because something may have existed, and because aerial evidence, however ambiguous, is considered worth preserving. The field itself is private pasture, and without specialist equipment or archive access to the original 1986 photographs, there is no way to interrogate the landscape further on the ground. For those interested in how Irish archaeology is actually documented, the case is a useful illustration of how tentative and incremental the process can be, a possible enclosure in a Limerick field, caught once in a photograph, and since then silent.