On the Roughan Hill area of the central Burren plateau, spanning the townlands of Parknabinnia, Leana, Caherfadda and Commons North, it is simply one corner of what researchers have identified as the densest concentration of wedge tombs in the entire country. The tomb at Parknabinnia known from the records as the northerly of a central pair within a group of four sits on a north-west-facing slope, poorly preserved but still legible, its broken sidestones still erect and its oval cairn, roughly seven metres east to west and five metres north to south, still visible around it. A wedge tomb is a type of megalithic burial monument, typically a tapering stone-lined gallery that narrows and lowers from west to east, built for communal burial during prehistory. This one retains that characteristic taper, with dressed edges on the surviving sidestones, a detail that suggests rather more deliberate craft than the current state of the monument might initially imply.

The tomb has been noted, and variously misread, by observers for nearly two centuries. John O'Donovan, visiting in 1839, counted what he called three cromleachs in the same field, one of them already prostrate. Thomas Westropp examined the site at the end of the nineteenth century and again in the early twentieth, describing it first as a small wrecked cist six feet square, and later as a defaced cist of three rude blocks. Neither description quite captures what the more systematic Megalithic Survey of Ireland, carried out by Ruaidhrí de Valera and Seán Ó Nualláin and published in 1961, recorded: a chamber some 3.3 metres long and 1.5 metres high, with dressed stonework and what may be the remains of both a roofstone and closing stones at each end of the chamber. The 1840 and 1916 Ordnance Survey maps label these monuments collectively as cromlechs, a term once used loosely for megalithic structures before more precise typologies were developed. Excavations at nearby tombs in the same Roughan Hill group, carried out in 2015, 2017 and 2022, have confirmed that construction in this area dates to the Chalcolithic and Early Bronze Age, a period roughly spanning the late third to early second millennium BC, when copper began to be worked alongside stone tools. The tomb at Parknabinnia sits within a landscape that was, in that same period, actively farmed, with habitation enclosures and field systems defined by mound walls recorded within a couple of hundred metres of the monument itself.