The Portal Tomb of Ballynacloghy is situated approximately 30 meters from the eastern coast of “Lackanaloy Creek” bay, north of the Ballynacloghy Townland (Baile na Cloiche) on a gentle southwest slope, around 8.0 kilometers southwest of Oranmore in the southern County Galway, Republic of Ireland. Portal Tombs, erected between 4000 and 2500 BC in the Neolithic period, are megalithic structures found in Ireland and Great Britain. They consist of two equally tall, upright stones with a doorstone in between, forming the front of a chamber covered, in part, by a massive capstone.
The partially collapsed west-east oriented Portal Tomb comprises a large rectangular capstone measuring about 2.4 meters in length, 2.2 meters in width, and 0.6 meters in thickness. It has slipped from the 1.6-meter-high portal stones but still leans against the obliquely standing southern stone and rests on the tall endstone. Two portal stones and a pointed endstone form a chamber measuring 2.3 meters in length and 1.8 meters in width. The structure is partly surrounded by shrubs on an oval mound approximately 8.0 meters in diameter.
