Set on a natural knoll at the eastern end of an east-west ridge in Lagcurragh, Co. Mayo, a ringfort sits with an unobstructed view north-eastward over a wide, flat expanse of grassland and bog. That outlook was almost certainly deliberate. A ringfort, or rath, is an enclosed farmstead of the early medieval period, typically defined by an earthen bank and ditch and used as a defended homestead for a farming family. This one uses the land itself as part of its defences, making the most of what was already there.

The rath takes the form of a raised, roughly circular platform measuring about 20.8 metres north to south and 19 metres east to west, defined by a scarp, essentially a sharp drop in ground level, that stands between 1.5 and 1.7 metres high for most of its circuit. Where the natural slope of the ridge runs from the west-northwest to the southeast, that drop increases dramatically, reaching between four and five metres, with a particularly steep fall at the south to southeast. The builders, in other words, let the ridge do a considerable amount of work for them. At the southwest to west, the scarp is noticeably lower, merging with the spine of the ridge, and this is considered one possible location for the original entrance, though a field fence now cuts through this area and partly obscures the base of the scarp. A second candidate for an entrance lies at the north, where the ridge descends in a long, gradual ramp, which would have made for a more manageable approach. The interior of the platform is flat and otherwise featureless today. What makes the site's context particularly interesting is that another rath lies just 300 metres to the east, raising the possibility that these were not isolated farmsteads but neighbouring settlements within the same early medieval landscape.