On a north-facing slope of pastureland above the Owenglanna valley in Drummin, County Galway, there is a subcircular drystone field wall, roughly 44.5 metres across its north-to-south axis, that has been quietly accumulating and shedding significance for well over a century and a half.

The Ordnance Survey's six-inch map of 1838 recorded the feature as a subrectangular field, suggesting whoever drafted it saw something with at least the hint of deliberate form. By the 1920 edition, the same map series described it differently, as a field boundary curving from the south-east through west to north-east, the geometry already softening in the cartographer's eye. When the site was physically inspected in May 1984, the wall itself was still visible, drystone construction being the traditional method of building field boundaries without mortar, relying instead on the careful placement of stone against stone. It was judged similar to other walls in the surrounding area. From the north-east round to the south-east, however, no masonry survived at all; only a low scarp in the ground hinted at where the wall had once continued. That gap, and the wall's broadly circular plan, were enough to attract attention, since subcircular enclosures can sometimes indicate early settlement or enclosure sites of archaeological significance. In this case, though, the evidence fell short of that threshold, and the feature was not accepted as an archaeological monument.