That particular kind of disappearance is not unusual in Irish archaeology, but it has its own quiet melancholy: a structure that was once pointed out by local people, noted down, and then apparently swallowed back into the ground.

The site sits within a subcircular univallate rath, a single-ditched circular enclosure of the kind built across Ireland during the early medieval period, typically as a defended farmstead. This one occupies a gentle east-facing slope above the marshy ground around Trabeg, on the Corca Dhuibhne peninsula in west Kerry. Associated with it was a souterrain, an underground stone-lined passage or chamber that early medieval communities used variously for storage, refuge, or both. The detail that it was "formerly visible" comes from local information recorded in J. Cuppage's 1986 archaeological survey of the Dingle Peninsula, a substantial field survey of the Corca Dhuibhne area. Whether the souterrain has since been obscured by vegetation, agricultural activity, or simple subsidence is not recorded.