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Binn Chuilceach
Cuilcagh Mountain with Lough Macnean Upper in foreground - - 65057.jpg
Cuilcagh Mountain, viewed from Belmore Mountain
Highest point
Elevation666 m (2,185 ft)
Prominence605 m (1,985 ft)
ListingMarilyn, Hewitt
Translationcalcareous/chalky peak (Irish)
PronunciationIrish: [bʲiːnʲ ˈxɪlʲcəx]
Cuilcagh is located in island of Ireland
Location in Ireland
LocationFermanagh, Northern Ireland & Cavan, Republic of Ireland
Parent rangeBreifne Mountains
OSI/OSNI gridH123280
Topo mapOSi Discovery 26
Official nameCuilcagh Mountain
Designated31 December 1998
Reference no.968[1]

Cuilcagh (from Irish: Binn Chuilceach, meaning "chalky peak"[2]) is a mountain on the border between County Fermanagh (in Northern Ireland) and County Cavan (in the Republic of Ireland). With a height of 665 metres (2,182 ft) it is the highest point in the Breifne Mountains, as well as in both counties Cavan and Fermanagh. It is also the 170th highest peak on the island of Ireland, and Ireland's only cross-border county top.[3] Water from the southern slope flows underground until it emerges some miles away in the Shannon Pot, the traditional source of the River Shannon.

Name and history[edit]

The name Cuilcagh comes from the Irish Cuilceach, which has been translated as "chalky". However, the mountain is mainly sandstone and shale, covered with bog and heather. "It is possible that the name refers to the limestone rock on the lower northern flanks. Here a number of streams disappear below ground at swallow holes named Cats Hole, Pollawaddy, Pollasumera and Polliniska, all forming part of the Marble Arch cave system. If so, the name would mean 'calcareous' rather than 'chalky'".[4] It has also been called Slieve Cuilcagh in English,[5] 'Slieve' being an anglicisation of Sliabh ("mountain").

In the 1609 Plantation of Ulster, Cuilcagh formed part of lands which were granted to John Sandford of Castle Doe by letters patent dated 7 July 1613 (Pat. 11 James I – LXXI – 38, Quilkagh). It was later sold by Sandford to his wife's uncle Toby Caulfeild, 1st Baron Caulfeild, Master of the Ordnance and Caulfield had the sale confirmed by letters patent of 12 July 1620 (Pat. 19 James I. XI. 45, Quilkagh).

Flora and fauna[edit]

Cuilcagh Mountain has one of the largest expanses of blanket bog in Northern Ireland, on a relatively high elevation upland landscape, bounded by limestone grassland to the north and montane habitats to the south. The blanket bog exhibits a wide range of characteristic vegetation and structural features, with well-developed pool, hummock and lawn features, acid flushes and bog bursts. The bog vegetation is characterised by luxuriant Sphagnum mosses but over most of the site dwarf-shrubs and graminoid herbaceous species dominate. The Cuilcagh area supports a rich assemblage of upland insects, and is one of the most important sites in Ireland for these species. Species recorded include the water beetles Agabus melanarius, Agabus arcticus, Dytiscus lapponicus, Stictotarsus multilineatus, Hydroporus longicornis and Hydroporus morio and the water bugs Glaenocorisa propinqua and Callicorixa wollastoni. Lough Atona is the main locality for these species.[6]

Conservation status[edit]

The Cuilcagh Mountain Park was opened by Fermanagh District Council in 1998.[7]

Ramsar site[edit]

The Cuilcagh Mountain Ramsar site (wetlands of international importance designated under the Ramsar Convention), is 2744.45 hectares in area, at latitude 54 13 26 N and longitude 07 48 17 W. It was designated a Ramsar site on 31 December 1998. The site qualified under Criterion 1 of the Ramsar Convention because is a large and relatively intact example of a blanket bog and one of the best examples of this habitat in the United Kingdom. It also contains a comparatively high-altitude example of an oligotrophic lake, Lough Atona. The site also qualified under Criterion 2 because it supports numbers of rare, vulnerable or endangered species. It is one of the most important upland breeding sites in Northern Ireland for Eurasian golden plover, an Irish Red Data Book species. The merlin, which is also an Irish Red Data Book species, occurs on the site too. The bog is also occasionally used for feeding by greater white-fronted geese.[6]


Benaughlin viewed from South Fermanagh in November 2007; Cuilcagh can be seen on the upper left

In 2001 the Cuilcagh Mountain Park was joined with popular tourist attraction the Marble Arch Caves and the Cladagh Glen Nature Reserve to make one of the first UNESCO-recognised European Geoparks.[7] This became a Global Geopark in 2004. In September 2008 the Marble Arch Caves Global Geopark was expanded into County Cavan, making it the world's first transnational cross-border Geopark.[7] The Geopark is protected and managed by Fermanagh District Council through the staff of the Marble Arch Caves Visitor Centre.[7]

See also[edit]


  1. ^ "Cuilcagh Mountain". Ramsar Sites Information Service. Retrieved 25 April 2018.
  2. ^ Place Names NI - Cuilcagh
  3. ^ "Cuilcagh". Retrieved 19 May 2007.
  4. ^ Tempan, Paul. Irish Hill and Mountain Names.
  5. ^ Fullarton, A (1856). A Gazetteer of the World: Volume 3. Royal Geographical Society. p. 527. Retrieved 1 August 2010.
  6. ^ a b "Designated and Proposed Ramsar sites in Northern Ireland" (PDF). Joint Nature Conservation Committee. Retrieved 7 July 2008.
  7. ^ a b c d "Marble Arch Caves Global Geopark – IRELAND". European Geoparks Network. Retrieved 16 August 2014.

Further reading[edit]

External links[edit]

  • BBC Learning Northern Ireland: Landscapes Unlocked – Aerial footage from the Sky High series explaining the physical, social and economic geography of Northern Ireland.

Coordinates: 54°12′00″N 7°48′40″W / 54.200°N 7.811°W / 54.200; -7.811