It is only about thirty centimetres high and three metres across, easy to overlook as field clearance or a collapsed boundary. But its circular form and its proximity to a holy well suggest a rather more deliberate purpose: it is thought to be a penitential station, a marked stopping point where pilgrims would kneel, pray, or perform prescribed rituals as part of a pattern, the traditional Irish practice of making a devotional circuit around sacred sites.

The well nearby is known as Tobergeeraun, standing roughly four and a half metres to the north-east of the cairn. Holy wells in Ireland were, and in some places still are, focal points for patterns that combined Christian devotion with older local customs, typically observed on a saint's feast day. The penitential station, if that is indeed what this cairn represents, would have been one node in that circuit, a place to pause and complete a set number of prayers before moving on. The association between the two features, the cairn and the well, gives each of them a context the other alone could not supply.