It measures forty metres across in both directions, enclosed by an earthen bank less than a metre high, and it is heavily overgrown. To its east lies a large tract of marsh. This is a rath, the Irish term for a ringfort, a type of enclosed farmstead that was the most common form of rural settlement in early medieval Ireland, typically occupied between roughly the fifth and twelfth centuries. Tens of thousands once existed across the island; many have been ploughed away or built over, which makes those that survive in the landscape, even in modest condition, worth pausing over.

The site sits in the broader district around Ballinrobe, between Lough Mask and Lough Carra in County Mayo, a landscape that was surveyed archaeologically in 1994. The earthen bank, though well under a metre in height now, would originally have defined the boundary of a farmstead, enclosing a space where a family or small household kept animals, stored goods, and built their dwelling. The marsh to the east would have been a natural feature of the surroundings, perhaps useful as a boundary or a resource, perhaps simply a condition of the terrain the original occupants learned to work around.