It is a possible ring-cairn, a type of prehistoric funerary or ceremonial monument in which a roughly circular area is enclosed by a low stone bank rather than a solid mound, leaving the interior open. This one measures about 16.3 metres across, and its enclosing bank, though now largely sod-covered and barely ankle-height, still shows a clearly defined inner and outer kerb of close-set stones with a core of earth and rubble between them. It sits on ground that falls away to the west and north-west, with the Deel River running roughly 500 metres to the north-west, and Nephin Mountain visible to the south-south-west, the Nephin Beg Range stretched along the western horizon.

The interior of the monument is level and grass-covered, which gives it a deceptively tidy appearance. In its southern half, however, there is a roughly circular spread of loose stones about six metres in diameter, butting up against the inner face of the enclosing bank. This spread has its own slightly raised rim of denser stonework, giving it the look of a feature within a feature. Its meaning is genuinely uncertain; it may be part of the original monument's design, or it may simply be the accumulated result of farmers clearing the surrounding fields over many generations and depositing the stones somewhere convenient. Both explanations are plausible, and neither has been ruled out. What makes the site particularly interesting in its landscape context is that it does not sit alone. A cluster of ringbarrows and possible barrows or cairns lies in adjacent fields roughly 200 to 400 metres to the north and north-east, suggesting that this part of Mayo was, at some point in prehistory, a place people returned to repeatedly, for purposes that remain only dimly legible.