In a pastoral field in Ballybroman, Co. Kerry, a ringfort once occupied the south-western corner, a circular earthen enclosure of the kind built in early medieval Ireland, typically as a defended farmstead surrounded by one or more raised banks and ditches. Today, nothing of it remains above ground. No earthwork, no crop mark visible to the casual eye, no sign that anyone ever arranged the land into that deliberate circle.

What confirms the site ever existed at all are two successive Ordnance Survey maps, the first from 1841 to 1842 and the second from 1898, both of which recorded the enclosure as a feature worth marking. That a structure present in the mid-nineteenth century had left no surface trace by the time C. Toal documented the area for the North Kerry Archaeological Survey, published in 1995, points to gradual erasure, most likely through agricultural levelling over the intervening decades. Ringforts, known in Irish as raths when formed from earthen banks rather than stone, number in the thousands across Ireland, yet a significant proportion have been lost to exactly this kind of incremental attrition, ploughed out or consolidated into the surrounding fields so completely that only maps and soil disturbance betray them.