What was once a rath, the Irish term for a roughly circular earthen enclosure used as a farmstead during the early medieval period, has been reduced over the centuries to barely perceptible rises and hollows in the pasture. No dramatic earthworks announce it; the low undulations that remain are the kind a walker might cross without a second thought.

The evidence for what lies here comes largely from cartography rather than excavation. The Ordnance Survey six-inch map of 1842 recorded the site as a hachured circular enclosure with a diameter of approximately twenty-five metres, hachuring being the system of short radiating lines that nineteenth-century cartographers used to indicate raised earthen banks or mounds. That map captures the site at a moment when it was still legible in the landscape. In the nearly two centuries since, agricultural activity has worn the feature down considerably, leaving only those faint ground-level traces. Ringforts of this kind were built across Ireland in their thousands between roughly the sixth and tenth centuries, serving as enclosed homesteads for farming families. Most were never grand structures; a modest bank and ditch around a dwelling was sufficient, and Lougharuane appears to have been a site of exactly that ordinary, workaday character.