Cloughmore or Cloghmore (), known locally as "The Big Stone", is a huge granite boulder perched on a mountainside almost above the village of

Rostrevor Rostrevor () is a village and townland in County Down, Northern Ireland. It lies at the foot of Slieve Martin on the coast of Carlingford Lough, near Warrenpoint. The Kilbroney River flows through the village and Rostrevor Forest is nearb ...

County Down County Down () is one of the six counties of Northern Ireland, one of the nine counties of Ulster and one of the traditional thirty-two counties of Ireland. It covers an area of and has a population of 552,261. It borders County Antrim to the ...

Northern Ireland Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...

. It sits on the slopes of Slieve Martin in Kilbroney Park, overlooking Rostrevor Forest,

Carlingford Lough Carlingford Lough (, Ulster Scots dialects, Ulster Scots: ''Carlinford Loch'') is a glacial fjord or sea inlet in northeastern Ireland, forming part of Republic of Ireland – United Kingdom border, the border between Northern Ireland to the nor ...

and the

Cooley Peninsula The Cooley Peninsula (, older ''Cúalṅge'') is a hilly peninsula in the north of County Louth on the east coast of Ireland; the peninsula includes the small town of Carlingford, the port of Greenore and the village of Omeath. Geography ...

. It is popular destination for visitors, and is part of a National Nature Reserve and Area of Special Scientific Interest. The granite boulder, which has a calculated mass of 50 tonnes, is a

glacial erratic A glacial erratic is a glacially deposited rock (geology), rock differing from the type of country rock (geology), rock native to the area in which it rests. Erratics, which take their name from the Latin word ' ("to wander"), are carried by gla ...

, thought to have been transported from

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

(from an island in

Strathclyde Strathclyde ( in Welsh language, Welsh; in Scottish Gaelic, Gaelic, meaning 'strath

alley An alley or alleyway is a narrow lane, footpath, path, or passageway, often reserved for pedestrians, which usually runs between, behind, or within buildings in towns and cities. It is also a rear access or service road (back lane), or a path, w ...

of the River Clyde') was one of nine former Local government in Scotland, local government Regions and districts of Scotland, regions of Scotland cre ...

bay) and deposited about 10,000 years ago by retreating ice during the last Ice Age. It sits on a relatively flat area of Silurian metasedimentary rock. Local legend has it that the stone was thrown from the

Cooley Mountains The Cooley Mountains () are on the Cooley Peninsula in northeast County Louth in Ireland. They consist of two ridges running northwest to southeast, separated by the valley of Glenmore with the Big River running through it. Slieve Foy, at ...

, on the other side of Carlingford Lough, by

Fionn mac Cumhaill Fionn mac Cumhaill, often anglicised Finn McCool or MacCool, is a hero in Irish mythology, as well as in later Scottish and Manx folklore. He is the leader of the ''Fianna'' bands of young roving hunter-warriors, as well as being a seer a ...

References

Geography of County Down Archaeological sites in County Down Glacial erratics Individual rocks {{NorthernIreland-archaeology-stub

See also

References