The site consists of an imposing mound stretching approximately 30 metres from east to west and 14 metres wide, rising up to 1.5 metres high. Its position is rather dramatic; the mound sits atop a quarry face with a sheer drop to the north, about 350 metres northwest of Glencoagh Lough. Whilst it was initially recorded as a possible megalithic tomb in 1987 and later classified as a court tomb in 1995, its true nature remains frustratingly uncertain.

What makes this site particularly intriguing is the oval opening near its eastern end, measuring 8 metres by 7 metres, which can only be accessed through a narrow passageway on the southern side. This 3-metre-long corridor, just a metre wide, features stone-lined walls with set stones ranging from 0.6 to 1.6 metres in length. Inside the entrance, two orthostats stand exposed; the northern one measures a metre long whilst its southern companion stretches to 1.4 metres, both reaching about 0.7 metres in height. The entire mound, now covered in grass and heather, appears to be largely constructed of stones, though no formal structure has been definitively identified beneath the vegetation.

The mystery deepens when considering the site's proximity to the quarry, which has been operational since at least the 1830s, appearing on the original Ordnance Survey maps from 1835-6. Whilst the open space within the mound resembles the court typically found in Neolithic court tombs, some archaeologists suggest it might instead be a small enclosure of uncertain date, possibly connected to more recent quarrying activities. Until further archaeological investigation can be carried out, this curious feature on the Donegal landscape keeps its secrets, straddling the line between ancient monument and more recent construction.