This one in Cloghadalton, County Limerick, does the opposite. It exists, essentially, as a shape that appears only from the air, visible for a window of years and then gone again, leaving wet pasture with no surface trace whatsoever. What was recorded is an enclosure, a broad category that typically refers to a defined area bounded by a bank, ditch, or wall, often of early medieval date, and used for settlement, agriculture, or ritual purposes. In this case, the boundary itself has vanished entirely from the ground.

The site came to light during the Bruff aerial photographic survey of 1986, when the enclosure was captured on film as a cropmark or soilmark readable from altitude, reference Bruff 86, AP 4/3622. It sits in wet pasture roughly 520 metres southwest of a nearby castle, recorded separately in the Sites and Monuments Record as LI024-099. Wet ground of this kind can preserve the differential moisture signatures that make buried features legible from above, which is likely why the shape showed up when it did. Crucially, the enclosure does not appear on any historic Ordnance Survey Ireland maps, suggesting it was not a prominent earthwork in the nineteenth or early twentieth centuries, or was simply missed. By the time orthophotography recorded the same ground between 2005 and 2012, and again in a Google Earth image dated 18 November 2018, there was nothing to see. The record compiled by Martin Fitzpatrick and uploaded in April 2021 is, for now, the primary evidence that anything was ever there.

There is nothing to observe on the ground at Cloghadalton that would point a visitor toward this particular spot. The field gives no indication of what the aerial photograph captured decades ago, and the enclosure's outline is not recoverable through walking the site. The value here is less about visiting and more about what the site illustrates: that the Irish landscape holds a great deal of archaeology that surfaces only briefly, under specific conditions of light, moisture, or season, and that the 1986 survey created a record that would otherwise simply not exist. Anyone with an interest in aerial archaeology or the Sites and Monuments Record can access the relevant entry, and the contrast between the 1986 image and the blank pasture of later orthophotography is itself a quietly instructive thing to sit with.