It is a small but telling detail: the landscape has been farmed over and around this structure for so long that the two have become entangled, the ancient and the agricultural quietly coexisting in level pastureland outside Glenmeen.

The site is a circular rath, roughly forty metres in diameter, defined by an earthen bank and an outer fosse, which is the ditch that would originally have encircled the whole enclosure. Today that fosse is only legible along the arc running from the south-west through west to the north-east; elsewhere it has been levelled or obscured. Raths, also known as ring-forts, were the most common form of rural settlement in early medieval Ireland, typically serving as enclosed farmsteads for a family and their livestock. What makes Lissaniska particularly interesting is the presence of a souterrain in the north-east quadrant of the interior. A souterrain is an artificially constructed underground passage or chamber, usually built from stone, that was associated with raths across Ireland and is thought to have served for storage, refuge, or both. Underground and invisible from the surface, it is a reminder that what looks like a simple grassy bank in a field represents a far more layered kind of occupation.

The rath is described as being in fair condition, which in archaeological terms means enough survives to read the form clearly, even if centuries of farming have softened its edges and the field boundary has taken a bite from the south. Visiting it means standing in open pasture and learning to read a gentle rise in the ground as something deliberate, something built.