The qualification matters: this site is ruined enough that archaeologists cannot say with confidence exactly what it is. Two upright stones, known as orthostats, meet at right-angles to suggest a gallery of about 1.65 metres in length, oriented roughly east to west. A fallen slab lying to the north may once have formed part of the tomb's side wall, though whether it belongs to the original structure or simply tumbled there is unclear. The honest answer, according to those who have studied it, is that the evidence is consistent with a wedge tomb without being conclusive.

Wedge tombs are the most numerous class of megalithic monument in Ireland, typically dating to the late Neolithic or early Bronze Age, roughly 2500 to 2000 BC. They take their name from their characteristic shape: a roofed gallery that narrows and lowers from one end to the other, usually oriented with the wider end facing west or south-west. The Inchinaneave remains were catalogued by Ruaidhrí de Valera and Seán Ó Nualláin in their systematic survey of megalithic tombs across Munster, published in 1982, which placed it at site Co. 29 in their County Cork sequence. The location itself, set some 140 metres north of a loop in the River Lee on undulating ground, is the kind of marginal, rocky terrain where such monuments are often found, positioned in the landscape rather than hidden from it.