These underground passages, carved directly from the bedrock, were once common throughout Ireland, serving as storage spaces, refuges, or perhaps holding ritual significance for early medieval communities.

The entrance to this particular souterrain begins with a vertical shaft, roughly 80 centimetres wide and plunging 2.5 metres into the earth. From here, the underground complex branches into two distinct chambers connected by narrow passageways. The northeastern passage stretches for 6 metres, maintaining a width just under a metre and a height of 1.5 metres; enough space for a person to move through whilst crouching. A small opening, barely 40 centimetres wide, links this passage to the southeastern chamber, which requires visitors to step down upon entry.

The southeastern chamber forms the heart of the complex, extending 3.6 metres in length with an interesting architectural detail: a southwestern alcove that expands the chamber's width from 1.2 to 1.55 metres. With a maximum height of just 1.3 metres, the entire structure would have required its original users to navigate in a stooped position. Set within high pasture that slopes naturally towards the southeast, this souterrain represents one of many such structures documented in the Archaeological Survey of County Donegal, offering a tangible connection to the lives and concerns of Ireland's early inhabitants.