A leacht is a low cairn or mound of stones associated with early Christian devotion, often marking a place of prayer or commemoration. The site was used as a ceallúnach, a type of informal burial ground, sometimes called a cillin, where those who could not be interred in consecrated church ground, often unbaptised infants or strangers, were laid to rest. The grave-markers here bear no inscriptions, and a single pillar stone has been set into the southern face of the enclosing bank, as if incorporated deliberately, perhaps repurposed from an earlier phase of the site's use.

The earthwork complex extends beyond the oval enclosure itself. To the north and north-west, angular and curvilinear stretches of earthen and stone banks spread across the landscape, and within a large rectangular enclosure to the north-west sit a pair of house sites, each measuring roughly five metres by four metres internally. Some of the curving bank sections to the east may represent the collapsed foundations of further structures, though their precise function is not fully resolved. A second ceallúnach lies a short distance to the east, suggesting that this corner of Killoluaig was, at some point, a place where the community regularly brought its dead who fell outside the ordinary rites. The site was surveyed and described by A. O'Sullivan and J. Sheehan in their 1996 archaeological survey of the Iveragh Peninsula, published by Cork University Press.