The field gives nothing away; there are no visible remains at ground level, no marker, no depression worth noting. The site exists in the record almost entirely because of an accident.

In the 1980s, a farmer levelling a slight hump in the field caused the ground to collapse, opening a hole roughly three metres across. What it revealed was a souterrain, an underground passage or chamber constructed from stone, of the kind built throughout early medieval Ireland, most likely between the sixth and twelfth centuries. Souterrains were used variously for storage, shelter, or refuge, and they survive in considerable numbers across Munster, though the majority are far better documented than this one. The Moneen example was filled in immediately after its accidental exposure, returning it to darkness. The surrounding topography still carries a faint trace of its presence: a slight break in the slope in the area of the souterrain, with a more pronounced fall of ground just to the south, overlooking a stream valley below.