It is not. The roughly oval enclosure, measuring just over fifteen metres north to south and twelve metres east to west, is defined by an earthen bank that still stands over a metre high along its better-preserved northern arc, though it has been worn and overgrown along the eastern and western stretches to little more than a slight swelling in the turf.

Earthwork enclosures of this kind are scattered across Cork and the wider Irish landscape, and while they are sometimes associated with early medieval settlement, the term covers a wide range of possible functions and periods. A ringfort, the most common type, would have served as a defended farmstead; others may have had ceremonial or agricultural purposes. What survives at Glenawilling is a subcircular form with a level interior and a gap roughly one and a half metres wide on the eastern side, which may represent an original entrance, a later breach, or simply a point where the bank has collapsed over time. That the interior remains level while the surrounding bank has eroded unevenly speaks to the slow, patient work of centuries of weathering and grazing.

The site sits in open pasture, which means its earthworks are readable at ground level if you know what to look for, though the low, overgrown sections could easily pass without notice. The slight rise along the north-western arc gives the best sense of its original profile, and standing there it becomes possible to read the enclosure as a coherent shape rather than a scattering of grassy humps.