The mound is not natural; it is composed of field clearance debris, the accumulated cast-offs of generations of farming, stones lifted from the surrounding land and piled in one spot. Local tradition holds that this particular heap marks the entrance to a souterrain, an underground passage or chamber typically constructed in early medieval Ireland for storage, refuge, or concealment, usually associated with a nearby settlement. Whether the passage survives intact beneath the rubble, or whether it has long since collapsed, is not recorded.

The site is catalogued as part of the archaeological landscape of Com Na Heorna Thoir, a townland on the Iveragh Peninsula, the large southwestern finger of land that contains the Ring of Kerry. A. O'Sullivan and J. Sheehan documented it in their survey of the peninsula's archaeology, published by Cork University Press in 1996, drawing on fieldwork across one of the more densely layered archaeological regions in Ireland. Souterrains are relatively common features in Kerry, often turning up in association with ringforts, and their underground nature means they are easily overlooked or, as here, sealed away beneath the ordinary accumulations of rural life. This one has effectively disappeared into the landscape it was once part of, marked now only by a heap of cleared stones and a local memory of what might lie below.