On the first edition Ordnance Survey six-inch map of 1838, a D-shaped area defined by field boundaries sits within a wood at Millicent Demesne in County Kildare. That shape is thought to represent the eastern half of what was once a complete enclosure, possibly a ringfort, the circular or oval earthwork banks that served as defended farmsteads throughout early medieval Ireland. The western half, if it ever survived into the cartographic record, left no trace. By 1985, the wood had been cleared and the ground sown with corn, and the feature is now invisible at ground level, surviving only as a ghost on an old map.

The clearance of the woodland may not have been a purely agricultural decision. Immediately to the south of the site, a Church of Ireland church and graveyard was consecrated in 1883, according to a plaque on the building. It is plausible that the ground was levelled or otherwise disturbed in connection with that construction, which would place the disappearance of any remaining surface traces somewhere in the latter half of the nineteenth century. Whether the enclosure had already been reduced to a faint topographical suggestion by that point, or whether the church works contributed more directly to its erasure, is not recorded. What remains is a moderately steep north-west-facing slope, a cornfield where a wood once stood, and the outline of something older still legible, just barely, in the 1838 survey.