The feature is a slightly raised platform, roughly 24 metres east to west and 25.5 metres north to south, its edges defined by a scarp, a low slope or stepped drop in the ground surface, that rises no more than half a metre above the surrounding field. The top is flat, grassy, and entirely featureless. What distinguishes it from the field around it, if you know to look, is a faint rim of slightly longer grass along the top of the scarp, and the possibility of a shallow fosse, a defensive or boundary ditch, detectable as a vague depression along the northern and southern arcs.

This kind of low-profile circular enclosure is a recognised feature of the Irish landscape, a category of monument that once served any number of purposes, from a farmstead enclosure to something with a more ceremonial function, though in the absence of excavation such questions remain open. At Bengeery, the enclosing scarp has clearly been subject to levelling at some point, its edges slumped and graded almost seamlessly into the field surface, which is part of why the platform reads so faintly now. The site sits in low-lying ground among gently undulating terrain and the rounded glacial hills known as drumlins, with a small drumlin visible about 60 metres to the north-east. To the west, the scarp slopes down into a rush-grown hollow roughly 10 to 11 metres across, though this appears to be a natural depression rather than part of the monument, with several similar hollows occurring elsewhere in the same field. The site was brought to the attention of the National Monuments Service by Jean-Charles Caillère.