The site itself is a univallate rath, a type of enclosed farmstead common throughout early medieval Ireland, consisting of a single bank of earth and stone that once defined a domestic or agricultural space. What sets this particular example apart is not what survives above ground but what reportedly vanished below it.

The Lynch family, whose house stands immediately to the north of the rath, passed down an account of underground passages discovered to the northwest of the enclosure during the father's time. A souterrain, to give such a passage its proper name, is a stone-lined underground chamber or tunnel, typically associated with Irish raths and ringforts and thought to have served variously for storage, refuge, or ventilation. They were built to be hidden, which may partly explain why this one has proved so difficult to relocate. By the time C. Toal documented the site in the North Kerry Archaeological Survey, published in 1995, the passages were no longer evident on the ground. Whether they collapsed, were filled in, or simply await rediscovery beneath the field is not recorded.