Gartnanoul is a megalithic court tomb located in Killykeen Forest Park

Killykeen Forest Park

Killykeen Forest Park straddling Lough Oughter is situated in County Cavan, Ireland approximately five miles from Cavan town. Responsibility for the upkeep of Killykeen is through the states commercial forestry service Coillte together with the National Parks and Wildlife Service where Lough...

, Loughtee Upper, County Cavan

County Cavan

County Cavan is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Cavan. Cavan County Council is the local authority for the county...

, Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

. Situated near Lough Oughter

Lough Oughter

Lough Oughter is a lake, or complex of lakes, in County Cavan covering approximately 8931 hectares. It is on the River Erne, and forms the southern part of the Lough Erne complex...

, the north tomb court is 3 metres in depth and 4 metres in width. Gartnanoul is called a dual-tomb because it has two tombs both in line with each other, with each tomb having its own court. It is estimated that when it was built Gartnanoul would have been 28 metres long, and 8 metres wide. The roof stones are missing although the tomb is in good condition and cairn materials are found scattered around the tomb.