Three stone capstones, exposed at the surface, mark the roofline of a souterrain, an underground passage of the kind built throughout early Christian Ireland, typically used for storage, refuge, or both. The passage runs roughly north-north-west to south-south-east for about three metres, and is narrow, only around 0.75 metres wide, suggesting it was built for a specific purpose rather than for any ease of movement.

The souterrain sits within a univallate rath, a ringfort defined by a single enclosing bank and ditch, which is the most common form of rural settlement monument in Ireland and broadly associated with the period between the sixth and twelfth centuries. Within the interior, slightly west of centre, there is an oval stone-lined hollow measuring roughly two metres by three and a half, about a metre deep and open to the east. Its exact function is unclear, though such features within raths are sometimes interpreted as animal pens or working areas. A further detail complicates the picture: three large boulders are visible on the outer face of the bank to the south, and these may represent a continuation of the souterrain extending beyond the enclosure itself. If so, the underground element of this site is longer and more elaborate than the exposed capstones alone suggest. The site was recorded by J. Cuppage as part of the Dingle Peninsula Archaeological Survey, published in 1986 under the Irish-language title Corca Dhuibhne, a thorough regional survey that documented hundreds of monuments across this particularly monument-dense stretch of the Kerry coast.