This is a cillín, the Irish term for an unconsecrated burial ground used, from medieval times well into the twentieth century, for unbaptised infants, stillborns, and others excluded from the sanctified soil of a parish churchyard. The site, roughly 16 metres north to south and 32 metres east to west, sits quietly in pasture with long views opening out to the west, south, and east, and the ridge of Slieve Mish visible to the north. Stones protrude unevenly from the surface, likely grave-markers, though none are formally inscribed or arranged.

The townland name preserves the memory of the place directly. Killeenafinnane derives from the Irish Cillínigh Fíonáin, possibly meaning the Church of St Finan, suggesting a much older religious association predating the later use of the ground as a cillín. The townland sits within the parish of Kiltallagh, in the diocese of Ardfert and the barony of Trughanacmy. An 1841 Ordnance Survey account noted a nearby earthwork, described then as a Danish Fort, a few chains to the south-west, and recorded the children's burial ground explicitly as the feature from which the whole townland takes its name. Both the 1841 six-inch and the 1892 twenty-five-inch Ordnance Survey maps mark the site, depicting it as a rectangular area tucked into the north-east corner of a field, its outline already being cut across by a post-1700 field boundary to the north and a drainage ditch to the east. A circular depression in the eastern part of the platform may point to quarrying activity at some point, adding another layer of disturbance to a ground that was never officially maintained or protected.