This one, a cashel on the fringes of Kilpeacon in County Limerick, has done the opposite, quietly retreating from the landscape to the point where it can no longer be made out in aerial photography at all. What was once a circular stone enclosure, the kind that would have defined a farmstead or place of status in early medieval Ireland, has become effectively invisible, absorbed back into the field system around it.

When the archaeologist O'Kelly recorded the site in 1942 to 1943, there was still something to describe, if only just. A cashel, sometimes called a stone ringfort, is a roughly circular enclosure defined by a dry-stone wall rather than the earthen bank more commonly associated with the term ringfort. They are particularly associated with the west and south of Ireland, where building stone was more readily available than the material needed for large earthworks. At Kilpeacon, O'Kelly found a circular open space around forty metres in diameter, enclosed by a stone bank that had already collapsed significantly. No facing stones were visible, the outer dressed surface of the wall having long since tumbled or been removed, and the bank survived to a height of only around thirty centimetres. The entrance could not be identified. A modern fence had cut across part of the structure, taking a chord off the circle and further disrupting whatever coherence remained.

By the time the site was reviewed against Digital Globe aerial coverage, it had ceased to be detectable even from above. There is no visitor infrastructure, no marker, and no guarantee that anything meaningful remains at ground level. The surrounding townland of Kilpeacon lies in relatively quiet agricultural country south of Limerick city, and anyone curious enough to look would need access to the relevant field, which is private land. The site is perhaps more useful as a reminder of how precarious the survival of these monuments is, particularly the smaller or more damaged examples, than as a destination in any conventional sense. O'Kelly's description, brief as it is, may well be the most complete record this cashel will ever have.