It is not a building in any conventional sense, just a well-constructed box of fieldstone roughly a metre high, yet it appears by name on Ordnance Survey maps as far back as 1842, labelled a Penitential Station. That cartographic recognition is itself telling: this was not a forgotten curiosity but an active site of religious practice, considered significant enough to mark and name at the height of the nineteenth century.

A penitential station is a designated stopping point on a devotional circuit, where pilgrims would pray, kneel, or perform prescribed acts of penance as part of a pattern, the Irish term for a localised saint's day gathering. In 1839, parish namebooks recorded that such stations were performed here by the local community, with a patron held on the last Sunday of summer. The site formed part of an unmarked pilgrimage route from Kilmacduagh to Keelhilla known as St Colman's Way, connecting it to the nearby monastic complex associated with St Mac Duagh, also known as Colman mac Duagh, a seventh-century saint of the Burren. The rectangular structure itself was likely built from rubble that had collapsed from the adjacent church, giving the station a kind of material continuity with the sacred architecture around it. In 1836, the antiquarian Westropp sketched stones lying on the surface of one of the two stations here; among them was a flat stone with narrow fluting that researchers have interpreted as resembling a medieval ingot mould, suggesting the site had earlier or more complex uses than pure devotional function.

The station sits within a small but dense concentration of monuments. A second penitential station lies only five metres to the south, inside the church ruins themselves. A holy well is close to the north-northeast, a hermitage or cave known as St Mac Duagh's Bed lies to the west-southwest, and a disused graveyard sits roughly thirty-five metres to the southeast. There is reason to think the whole complex may once have been enclosed within a single boundary, the various elements of a functioning early medieval religious landscape arranged in close proximity around the church that gave this hollow in the hazel wood its purpose.