The enclosure recorded at Ardshanbally, in County Limerick, offers none of these. By the time archaeologists from the Archaeological Survey of Ireland visited in 2000, there was nothing left to see at ground level, no bank, no ditch, no trace of whatever boundary once defined this place. It sits in low-lying, wet pasture about 95 metres north of the River Maigue, a stretch of country that tends toward the sodden and the featureless, and the enclosure does not appear on any of the Ordnance Survey's historic mapping series. Its existence is known almost entirely because someone noticed it during the planning process for a road.

The site came to formal attention through the Adare Bypass Constraint Study, a survey carried out to identify archaeological monuments that might be affected by proposed road development in the area. That study, referenced as 51/A/2, page 62, recorded the feature as an enclosure, the broad category used in Irish archaeology for a defined area bounded by a bank, wall, or ditch, which might have served any number of purposes: a ringfort settlement, a livestock enclosure, or something with a ceremonial function. Whether this particular example was any of those things is now effectively unanswerable. Aerial photography from Digital Globe, taken between 2011 and 2013, shows nothing, and a Google Earth image from June 2018 is equally blank. A second possible enclosure lies about 70 metres to the south-west, catalogued separately, which at least hints that this part of the Maigue valley may once have been more structured in its use than the current landscape suggests.

There is, practically speaking, nothing to visit here in any conventional sense. The site lies in private agricultural land, and with no surface remains visible and no distinctive topography, there would be little to orientate a visitor even with permission to look. What it offers instead is a particular kind of reflection: the record of a place that has been formally identified, surveyed, photographed from above on multiple occasions, and each time confirmed as absent. The River Maigue runs nearby, and the wider Adare area has no shortage of more legible monuments, but Ardshanbally occupies a different register, a site known primarily through the act of failing to find it.