This one in Ballyfauskeen, County Limerick, offers nothing so obliging. It is a site that exists primarily as a record of its own disappearance, a possible circular enclosure that has left no trace visible to the naked eye and never appeared on any historic Ordnance Survey Ireland map. What we know of it comes entirely from a single set of aerial photographs taken on the 3rd of November 1984.

The photographs in question were not taken for archaeological purposes. They were commissioned by Bórd Gáis Éireann during survey work for the Curraleigh West to Limerick gas pipeline, shot at a scale of 1:5000. In the course of examining that imagery, analysts identified what appeared to be a possible circular enclosure in pasture, lying roughly 65 metres south of a farm track. Circular enclosures of this type are a familiar feature of the Irish landscape; they are broadly understood as the enclosed settlements of early medieval farmers, defined by an earthen bank and ditch. Whether this particular example ever functioned as such, or belonged to an earlier period entirely, cannot be determined from what survives. A second enclosure, formally recorded as LI049-198, sits approximately 110 metres to the northwest, which at least suggests the area held some significance at one time. By the time Digital Globe orthoimagery was captured between 2011 and 2013, and in subsequent Google Earth imagery, no surface remains were detectable at all. The site was compiled into the record by Martin Fitzpatrick and uploaded in October 2021.

There is no meaningful way to visit this site in any conventional sense. The pasture it occupies shows nothing, and without specialist equipment or access to the original BGE aerial photographs, there is little to observe on the ground. What makes it worth knowing about is precisely that absence. It serves as a quiet reminder that the archaeological record of rural Ireland is still being assembled, often from unlikely sources, and that infrastructure projects occasionally preserve evidence that systematic survey might never have caught. The neighbouring enclosure to the northwest is at least formally catalogued, and that part of County Limerick, south of the city, holds a broader scatter of similar sites worth exploring through the National Monuments Service records if the invisible and the barely-there appeal to you.