That is more or less the entirety of the record: a souterrain, briefly exposed, immediately infilled, and now leaving no trace whatsoever on the surface above it.

A souterrain is an underground passage or chamber, typically built during the early medieval period in Ireland, constructed from stone and associated with nearby settlement sites, often ringforts. They are thought to have served as places of refuge, cold storage, or both. The Deshure example sits within exactly that kind of context, located inside a ringfort, the circular enclosure type that dots the Irish countryside in its thousands and represents the dominant form of rural settlement from roughly the sixth to the twelfth centuries. What makes this particular site quietly remarkable is not what was found but what happened next. Local information recorded at the time indicates that the chamber was exposed, recognised for what it was, and then deliberately covered over again. No excavation, no detailed record of its dimensions or construction, no photographs in any accessible archive. Just a stone room underground, glimpsed and then returned to darkness.