Known as Kildreenagh, or Cill Draighneach, it served for generations as a ceallúnach, the Irish term for a burial ground set apart from consecrated parish ground, used specifically for those whom the Church would not receive in death. Unbaptised infants were the most common occupants, along with suicides. These were individuals whose deaths placed them, in the eyes of Catholic doctrine, outside the possibility of Christian burial. The grave-markers clustered in the southern and south-eastern portions of the site are uninscribed, which is itself a kind of statement: the dead here were remembered privately, not publicly proclaimed.

Writing in 1879, a recorder named Brash noted that the site was, within living memory and tradition, reserved almost entirely for unbaptised children and suicides, with only one known exception: an elderly woman buried there roughly seventy years before his account. What draws the eye beyond those quiet markers is the range of other features compressed into the enclosure, which measures approximately 47 metres north to south and 42 metres east to west. The foundations of five huts survive within it, along with a shrine, a holed stone, and an ogham stone, the last being an upright stone incised with an early medieval Irish script running along its edge. The presence of ogham suggests the site has early medieval origins, long predating any post-Norman parish organisation. The original boundary earthwork, a steep-sided bank reaching up to 2.3 metres in external height, survives only in the southern and western sections; the rest of the perimeter has been replaced by modern stone walling. A narrow entrance gap, just half a metre wide, opens at the south-west, and a possible second entry at the south-south-east is marked by a standing stone just over a metre tall.

The eastern edge of the site was planted with conifers in the early 1980s, which has altered the character of that section somewhat, though the core of the enclosure retains much of its original form. The site sits towards the centre of Valentia Island, facing south toward the channel, a quietly conspicuous location that was probably never meant to be hidden, simply kept separate.