The difficulty is that nobody has confirmed it is actually there. The site is catalogued not for what has been found, but for what people have long believed to exist underground.

The souterrain is associated with a sub-circular bivallate rath, meaning a roughly circular enclosure defined by two concentric earthen banks and ditches, the kind of fortified farmstead that was common across Ireland during the early medieval period. This particular example sits on fairly level pastureland about two hundred metres north of a small east-west flowing tributary of the Owenascaul river on the Dingle Peninsula. The tradition of a souterrain here was recorded by J. Cuppage in the 1986 Corca Dhuibhne archaeological survey of the peninsula, a landmark regional study that documented hundreds of sites across this densely layered landscape. The rath itself is visible in the field; the souterrain, if it exists, remains unexcavated and unverified.