Most burial enclosures in Ireland are roughly circular or rectangular, reflecting either the curve of a ráth or the discipline of a later ecclesiastical layout. The one at Slievereagh in County Wicklow takes neither form, tracing instead an irregular, tapering outline across a south-west-facing slope, with a low earthen bank, between three and a half and four and a half metres wide but only about half a metre high, marking its perimeter. Inside, a subrectangular granite font survives, complete with a basin and a drain-hole, the kind of carved stone vessel associated with early Christian ritual use, likely for water, possibly for baptism.

The setting reinforces that early ecclesiastical character. The enclosure looks down towards a stream, and some eighty metres to the south-west lies a holy well, a spring or source venerated in pre-Christian and early Christian tradition alike, often understood as a threshold between the ordinary world and something older. The pairing of a burial ground with a holy well is a pattern seen at many early medieval religious sites across Ireland, where the well, the enclosure, and whatever modest structure once stood between them formed a loosely organised sacred complex. No church is recorded here now, but the font, the enclosure shape, and the proximity of the well all suggest a site with deep roots, quietly continuing to mark the landscape long after any formal religious community moved on or dissolved.