Ordnance Survey maps once recorded a circular enclosure here, the kind of feature that typically marks the footprint of an early medieval ringfort or ecclesiastical settlement, but on the ground today there is nothing to see. The enclosure has vanished entirely, and what remains is a single piece of local knowledge: that somewhere within or near this now-invisible boundary, there was once a souterrain.

A souterrain is an underground stone-lined passage or chamber, built during the early medieval period in Ireland, generally thought to have served for storage, refuge, or both. They are found in their hundreds across Kerry and the broader Dingle Peninsula, often associated with ringforts or early Christian sites. The name Cill Mhuire, meaning something close to "Mary's Church" in Irish, hints at ecclesiastical origins for the wider area. The circular enclosure recorded on the OS maps, given the reference number KE035-058----, had already left no visible trace by the time archaeological survey work was carried out for J. Cuppage's 1986 survey of the Corca Dhuibhne region. That survey, covering the archaeology of the Dingle Peninsula, remains a foundational reference for the area, and the souterrain at Cill Mhuire appears within it on the basis of local oral information rather than direct excavation or physical inspection.

What makes this site quietly interesting is precisely its elusiveness. The archaeology here survives only in two forms: a cartographic ghost on an old map, and a piece of local memory passed on to surveyors. Whether the souterrain itself still lies underground, sealed and intact beneath fields that have long since absorbed any surface evidence, is simply not known.