Why this matters
Portal tomb, dating to the Neolithic period (c. 4000–2500 BCE). It represents an early form of megalithic funerary architecture, significant for understanding prehistoric burial practices and social organisation in the region.
Overview
Portal tomb in Birrinagh is recorded as Portal tomb in Longford. On thin-soiled, level land, 90m to the SE of a stream. A small chamber (L 1.5m) lacks sidestones.
Who made it and when
The saved account records: On thin-soiled, level land, 90m to the SE of a stream.
How it was made and used
The saved account records: A small chamber (L 1.5m) lacks sidestones.
What was found
The saved account records: Two portal-stones (H of both 1.8m) flank a doorstone (H 1.5m) at the E.
What remains
The saved account records: According to a local claim, a sidestone at the S and what might have been a subsidiary roofstone were removed in the 1960s.
Why it mattered
Portal tomb in Birrinagh matters because the source ties portal tomb to this exact landscape and preserves evidence that a bare map name loses. The saved account adds: A backstone (H 1.3m) is 1.5m W of the doorstone.
History checked 15 August 2026 against the named sources below.
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