It is easy to overlook, its interior sitting flush with the surrounding ground, giving little away at eye level. Only when you understand what you are standing beside does the geometry become interesting: a roughly rectangular enclosure, approximately 24 metres north to south and 32 metres east to west, shaped by a series of ditches, banks, and a shallow southern depression that together suggest deliberate, carefully considered construction.

The enclosure is defined along its south-western to north-eastern arc by a curving dry fosse, the term used for a defensive or boundary ditch dug into the earth rather than filled with water, here running between 10 and 11 metres wide and dropping to around a metre in depth. The southern boundary is marked by a much gentler, wider dip, barely 20 centimetres deep, while the eastern side takes a noticeably different form: a straighter earthen bank with an additional outer fosse and a second, lower outer bank beyond that. This layered eastern edge, with its internal height of 0.8 metres and external of 0.9 metres, gives the enclosure an asymmetrical character, more heavily defined on one side than the other. Immediately east of this boundary lies a stone-lined pond, roughly 15 metres by 8 metres, and it is possible that the outer bank is simply the accumulated spoil from repeated cleaning of that pond rather than a deliberate defensive feature. Some damage has occurred at the northern end of the eastern side, with dumped material partially filling the fosse.

The relationship between the enclosure and Leamaneh Castle, which stands just to the north across the road, is not established with certainty, but the proximity is striking. Leamaneh is a well-known Clare landmark, a 15th-century tower house extended into a fortified house in the 17th century. Whether the enclosure predates the castle, served it in some functional capacity, or belongs to an entirely separate period of land use, the waterlogged ground and the careful shaping of its boundaries suggest it was once considered worth the considerable effort of construction.