The ground above it gives nothing away, no depression, no scatter of stone, no gap in the vegetation. Whatever lies beneath has been entirely reclaimed by the surface above it.

The structure in question is a souterrain, an underground chamber or tunnel, typically constructed from drystone walling and covered with large capstones, that was built during the early medieval period in Ireland, most commonly as a place of storage or refuge associated with a nearby settlement. In this case, local knowledge places it within a ringfort, the circular earthwork enclosure that was the standard unit of rural habitation in Ireland from roughly the sixth to the twelfth century. Ringforts were farmsteads, and souterrains were a fairly common feature within them, though they vary considerably in size and complexity. The associated ringfort at Maulikeeve is recorded separately, but the souterrain itself, as of the most recent available information, leaves no visible surface trace whatsoever. It is known because people in the area know of it, which is itself a small and quietly interesting thing: the survival of local memory as the last record of a buried structure.