The rath at Cahercorney does the opposite. Sitting at the edge of an extensive lowland marsh in County Limerick, it occupies ground that is conspicuously wet, conspicuously low, and conspicuously easy to overlook. A ringfort, for those unfamiliar with the form, is a roughly circular enclosure of earthen banks, most commonly associated with early medieval settlement and farming. This one belongs to a cluster of twelve such monuments in close proximity, a concentration that is itself unusual enough to warrant attention.

The site was documented by O'Kelly in 1942 to 1943 as part of a wider survey of the monument complex, and his description remains the most detailed account available. He classified it as a Type B structure, meaning it takes the form of a raised circular platform rather than a simple enclosed area bounded by a bank. The platform, roughly 30 metres in diameter, rises to approximately 1.5 metres at its highest point on the north side, where a slight bank reinforces the edge. A continuous fosse, the ditch that encircles the outer edge of many such earthworks, runs around the entire perimeter, though no recognisable entrance survives. O'Kelly noted that the base of the platform appears to incorporate rough small boulders protruding through the clay, suggesting deliberate construction to raise the surface above the surrounding wetland. Several of the twelve monuments in the complex, including this one, were absent from Ordnance Survey maps at the time of his survey, and numbers one, two, three, ten, eleven, and twelve remained unmapped. The outline of the Cahercorney rath is, however, visible on Digital Globe aerial photography.

Accessing a site that sits on the edge of a marsh requires some practical consideration. The ground is likely to be soft underfoot for much of the year, and summer or a dry spell in late spring will make the approach considerably easier. Because the monument sits lower than others in the complex, it may not immediately draw the eye on arrival. Aerial photographs held by the Archaeological Survey of Ireland, taken in January 2003, offer a clearer sense of the platform's outline than a ground-level visit might provide on its own. Anyone interested in exploring the broader complex would do well to cross-reference those images with the survey record before heading out.