This megalithic structure sits on a slight ridge with commanding views; to the north, the vista stretches across Ballyness Bay to the islands of Inishbofin and Tory, whilst to the south, an impressive arc of mountains runs from Muckish to Errigal and onwards to Bloody Foreland. The tomb is the westernmost of several similar monuments scattered along this narrow coastal strip that extends eastward towards Horn Head.

The surviving chamber, which faces east-northeast, measures approximately three metres in length and originally featured two portal stones flanking a doorstone at its entrance. Whilst the northern portal stone still stands at two metres high, its southern counterpart has fallen and now lies prostrate before the doorstone, which itself leans inward. The chamber’s sides were formed by two stones on the north and a single stone, now broken and fallen inward, on the south. A massive roofstone, measuring 3.8 metres long and up to half a metre thick, has been displaced and now rests awkwardly above the southern side of the chamber; local tradition holds that this stone shifted during a storm around 1800. When treasure hunters excavated the chamber floor in the 19th century, they reportedly discovered that it was paved in the centre with great flagstones at either end, along with cinders, ashes, shells and burnt slates.

Historical records reveal that this site once contained a second, smaller chamber directly behind the main tomb, which appears to have been demolished between the late 1830s and early 1840s. An 1836 sketch shows this lost chamber consisted of three upright stones forming a small enclosed space, possibly sharing the same orientation as its larger neighbour. Some of the large stones now incorporated into nearby field walls may be the remnants of this destroyed structure, including a distinctive gabled stone that likely formed its backstone. This dual-chamber arrangement, whilst now partially lost, would have been similar to other Irish portal tombs like the one at Kilclooney More, where two chambers of different sizes stand in alignment, testament to the complex burial practices of Ireland’s Neolithic communities.