At Inchinagotagh in County Cork, a souterrain, an underground stone-built passage or chamber typically associated with early medieval settlement and used for storage or refuge, came to light in 1969 and was gone before the day was out. What survives is not the structure itself but the bare fact of its existence, preserved in a brief note.

The souterrain was uncovered during sand quarrying, which gives some sense of how it met its end: the same machinery that exposed it most likely finished it off. According to McCarthy, writing in 1977, it consisted of a single stone-built chamber with an entrance shaft. That is almost the entirety of what is recorded. No dimensions, no associated finds, no indication of age beyond the general early medieval period typical of such structures in Munster. The quarry took the rest. Sites like this are not especially rare in Cork, where souterrains appear across the landscape in varying states of survival, but most at least leave something tangible. The Inchinagotagh example exists now only as a citation.

There is nothing to visit at Inchinagotagh. The site was obliterated on discovery, and the location itself offers no visible trace. Its interest lies entirely in what the record implies: that beneath ordinary farmland and sand deposits, early medieval people were building in stone underground, and that an unknown number of such structures have come and gone without even this much documentation to mark them.