A small D-shaped enclosure recorded at Releagh in south-west Kerry is one such case: documented in 2000, gone by 2007, reclaimed and reseeded into the surrounding pasture as though it had never existed.

When surveyors visited the site in 2000, what they found was modest but legible. The enclosure measured roughly 4.7 metres east to west, with a straight eastern side stretching 7.2 metres. Its boundary was formed by a roughly built drystone wall, about 0.7 metres thick and standing to a metre in height, with large stones set into its base. At the western side the wall had been cut into the slope, using the rising ground as part of its structure, and at least one substantial boulder had been incorporated directly into the fabric of the wall rather than removed. The single entrance, just 0.6 metres wide, faced east. Inside, the ground sloped downward towards that entrance, and the interior was cluttered with rubble, suggesting the remains of something more substantial than the low walls still visible. The enclosure sat within a network of older, disused field boundaries and directly adjoined a hut site to the south-east, the two features together pointing to a small cluster of past activity in what is now an unremarkable hollow in the Kerry landscape.

By 2007, none of this remained above ground. The land had been reclaimed for agricultural use, and the enclosure, along with whatever physical relationship it maintained with the adjacent hut site, had been effectively erased. What makes Releagh unusual is not the scale or rarity of the monument itself but the speed and completeness of its loss, and the fact that the record of it survives at all only because surveyors happened to visit in the narrow window between its survival and its disappearance.