What remains is a single curving field wall on the western side, and only because that wall appears to follow the line of something much older. The enclosure itself was cleared during land reclamation work in 1982, leaving a site that is, in practical terms, already gone.

Circular enclosures of this kind are a familiar feature of the Irish landscape, typically the remains of a ringfort or ecclesiastical enclosure, a roughly circular area defined by an earthen bank and sometimes a ditch, used for settlement, farming, or religious purposes across many centuries of early medieval life. At Cill Mhuire, the name itself suggests a church or sacred site dedicated to Mary, and the presence of such an enclosure would fit that pattern. The second edition of the Ordnance Survey map, produced in the late nineteenth century, recorded the site clearly enough to show that even then the western half of the enclosing bank had already been replaced by a field wall, probably at some earlier, unrecorded point. That substitution, noted by archaeologist J. Cuppage in the 1986 Corca Dhuibhne archaeological survey of the Dingle Peninsula, is the reason any trace survives at all. When the reclamation machinery came in 1982, the curving wall was already a field boundary and so was left in place while the rest of the earthwork was levelled.