Court tombs, sometimes called court cairns, are a distinctly Irish monument type: long stone structures in which a roofless semicircular or oval forecourt opens into one or more roofed gallery chambers, the whole thing originally buried beneath an elongated cairn of smaller stones. They are among the earliest megalithic monuments in Ireland, generally dated to around 4000 BCE, and were used for communal burial as well as, most likely, ritual activity connected to the dead.

The primary scholarly record for this site comes from the survey conducted by Ruaidhrí de Valera and Seán Ó Nualláin, published in 1964 as the second volume of their Survey of the Megalithic Tombs of Ireland, which systematically catalogued the megalithic monuments of County Mayo. De Valera and Ó Nualláin's work across multiple volumes remains a foundational reference for understanding the distribution and structural variation of court tombs, portal tombs, and passage tombs across the island. Mayo is particularly well represented in the record, with concentrations of these monuments across its northern and western reaches, and Carrownaglogh sits within that broader pattern of Neolithic settlement and memorialisation in the west of Ireland.