The rath at Lisnacunna offers something quieter and, in its own way, more unsettling: low banks barely lifted from the surrounding land, the remnant of a monument that centuries of ploughing have done their best to erase. A rath is an earthen ringfort, typically dating from the early medieval period, that would originally have enclosed a farmstead or small settlement. Here, the earthworks have been so reduced by agricultural activity that what survives is less a structure than a faint insistence on the landscape.

What gives the site a particular interest is its association with a souterrain. A souterrain is an underground passage or chamber, usually stone-lined, built during the early medieval period and typically found in connection with ringforts. Their precise function is still debated, though storage and refuge are the most commonly proposed explanations. The presence of one here suggests that whatever community once occupied this rath invested real effort in its construction, even if the above-ground remains have since been largely swallowed by the field. The site was noted by archaeologist Rose Cleary, who observed that the low banks remain visible despite the cumulative damage of ploughing.