The site at Baile An Tsagairt is one of those places where destruction and discovery arrived at the same moment, and where the archaeological record amounts to a circular patch of rubble roughly 30 metres across, the ghost of something that no longer fully exists above or below ground.

The ringfort that once stood here, a type of enclosed farmstead common across early medieval Ireland, was levelled around 1982. The clearance work exposed a drystone-built souterrain, an underground structure of the kind typically associated with Irish ringforts, consisting of one or more narrow passages and chambers that may have served for storage, refuge, or both. This particular example had at least one passage and chamber, with a porthole slab, a stone with a deliberately cut opening used to control access between sections, marking an entrance point within the structure. Once uncovered, it was covered over again rather than excavated properly, which means its full extent remains unknown. Among the loose stones on the surface, a small perforated stone was recovered, identified tentatively as either a net-sinker or a loom-weight, a modest find that hints at the domestic or fishing life of whoever once lived within the enclosure. That single object, sitting somewhere between the maritime and the agricultural, fits neatly with the character of the Corca Dhuibhne peninsula, where both activities have shaped daily life for centuries.