That, in brief, is the story of this souterrain on a low hill near Killora Church in County Galway, a structure that was slipping out of the visible world even as archaeologists were trying to record it.

A souterrain is an underground stone-built passage or chamber, typically associated with early medieval settlement in Ireland, often thought to have served for storage, refuge, or both. The example at Killora sits roughly 25 metres west of the old church, on slightly raised ground. When investigators first visited in December 1982, the souterrain had already become inaccessible, but there was still something to see: a single roof lintel and faint traces of the side-walls breaking the surface. The structure was noted by McCaffrey as far back as 1952. By the time of a follow-up visit in 1992, even those modest surface traces had gone. No stonework, no outline, nothing to suggest that anything lay beneath.

What remains now is essentially a location and a set of coordinates, a point on a hillside near a ruined church where something once existed and may still, intact or collapsed, lie underground. The complete disappearance of surface evidence within ten years is not unusual for souterrains, which can be swallowed by vegetation, disturbed by agricultural activity, or simply settle further into the earth. But it does mean that Killora's example exists now more as a historical footnote than as anything a visitor could meaningfully observe.