It measures roughly 12.5 metres north to south and 9.5 metres east to west, grassed over now, composed of earth and stone, and ordinary-looking enough until you notice the slight hollow at its centre, where a number of stone settings have been arranged in a way that resists easy interpretation. Whatever purpose they once served, it has not survived in any obvious form.

The mound retains traces of a stone revetment, a facing of upright or laid stones used to hold an earthwork together and give it a defined edge, at its north-eastern side. This detail suggests some degree of deliberate construction rather than simple field clearance or natural accumulation, though the site has not been excavated and its age and function remain unrecorded. Inis Oírr already carries a considerable weight of archaeology, from early Christian remains to a castle half-buried in sand, and this mound sits quietly among that company without the benefit of a clear label. Paul Gosling's Archaeological Inventory of County Galway, published in 1993, catalogued it in fair condition, which is roughly where matters appear to have rested since.