But the slight swell of ground at Lissyconor in County Galway conceals the eroded outline of a rath, a type of circular or roughly circular earthwork enclosure that was once the most common form of rural settlement in early medieval Ireland. Thousands were built across the country, typically between the sixth and tenth centuries, and they ranged from modest farmsteads surrounded by a single earthen bank to more elaborate multi-vallate constructions used by higher-ranking families. The one at Lissyconor belongs to the quieter end of that spectrum.

What survives today is a subcircular form measuring roughly 40.6 metres east to west and 36.9 metres north to south, its perimeter now expressed not by an intact bank but by a degraded scarp, a low, worn slope where the original earthwork has slumped and settled over many centuries. A later field wall has been built directly across part of the circuit, running from the south-east around through the south to the south-west, effectively colonising the old boundary for a newer agricultural purpose. A gap on the northern side may represent the original entrance, which in many raths faced roughly eastward or northward, though it is impossible to be certain without excavation. The overlay of the field wall onto the earlier monument is a common enough story in the Irish landscape, where one generation's enclosure becomes the raw material for the next.