A cashel is a stone-walled ringfort, the western Irish equivalent of the more commonly seen earthen enclosure, and this one sits in karst landscape, that distinctive limestone terrain of bare rock, thin soils, and sudden hollows that defines much of County Mayo's character. The wall, built from large boulders, encloses a subcircular area roughly 36 metres north to south and 33 metres east to west. Much of it is ruined, but original stone facing survives along a stretch running from the south-east around to the north, still standing to about half a metre in height and nearly two metres wide at its base.

At the centre of the interior sits a low circular mound, around ten metres across and 0.4 metres high, which may represent the remains of a hut site, the kind of structure where people actually lived within the protective enclosure of the cashel walls. Ringforts of this type were typically built and occupied during the early medieval period, roughly between the fifth and twelfth centuries, and functioned as farmsteads rather than military fortifications, providing a defined and defensible space for a family and their livestock. The surrounding pasture to the north and west suggests the land has been in agricultural use for a very long time, the ancient enclosure and the modern fields sharing the same quietly productive ground.