This is a cashel, a type of early medieval ringfort built from drystone rather than earthen banks, and this one measures some 48 metres in diameter, making it a substantial structure even in its current, degraded state. The enclosing wall has been reduced to a low, grassed-over mound, and the numerous gaps that interrupt its circuit appear to be modern intrusions, the result of later agricultural activity rather than ancient collapse.

Cashels were typically built during the early medieval period, roughly between the fifth and twelfth centuries, and served as enclosed farmsteads for a single family or extended kin group. The drystone construction, fitted together without mortar, was the practical choice in areas of County Galway where stone was plentiful and timber less so. Inside this example, faint traces of stone walling suggest the interior was once subdivided, possibly separating living quarters from animal byres or storage areas, a common arrangement in cashels of this type. A cluster of houses lies roughly 120 metres to the north-east, indicating that this parcel of land has seen continuous human use well beyond the cashel's active lifetime, each generation leaving its own layer of occupation across the same ground.