What is recorded here

OConors Monument (Site of) is a cairn, unclassified in Carrownagilty, County Sligo, Ireland. It appears as an oval flat-topped structure measuring 4.5m by 3.3m and rising 0.5m, though a drain has partially removed its northwest side. O'Rorke identified it as the possible site of Bruidne Da Derga, the fortress of King Conaire, which tradition claims enemies burned to ashes with Conaire himself.

In a clearing in a coniferous forest, on a slight S-facing slope. An oval flat-topped cairn (4.5m x 3.3m; H 0.5m), the NW side of which has been partially removed by a drain. According to O'Rorke ([1889], vol. 2, 275), this is possibly the site of 'Bruidne Da Derga', the fortress of King Conaire, which with Conaire himself is said to have been burned to ashes by enemies. There are no visible remains of the limekiln indicated on the 1838 OS 6-inch map in the immediate vicinity. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

OConors Monument is a Neolithic flat-topped cairn, dating to approximately 2500–2000 BCE. Such cairns are significant as funerary or ritual monuments, reflecting early farming communities' burial practices and landscape use in the region.

This remains an important historical record, but the official description says the monument is no longer visible or has been destroyed. The monument record does not grant public access. Check the route and ask the landowner before entering private land.