At Kinmona in County Galway, a circular enclosure some 33.5 metres in diameter, defined in its day by a single ring of boulders, has left no trace on the surface of the ground. The monument exists now almost entirely as a classification, a coordinate, and a reference in a mid-century catalogue.

The enclosure was recorded by McCaffrey in 1952, who described it as a circular arrangement of boulders and assigned it the designation no. 99 in his survey. Enclosures of this general type, ringfort-like boundaries that may once have enclosed a dwelling, a farmstead, or a ritually significant space, are common across the Irish landscape, but most retain at least a bank, a ditch, or a scatter of structural stone. This one, sitting some 145 metres to the west of a neighbouring enclosure at Kinmona, had apparently already lost its defining features by the time it was formally noted. Whether the boulders were cleared for agriculture, incorporated into field walls, or simply subsided into the soil over many centuries is not recorded.