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Lough Swilly
Lough Swilly
Loch Súilí (Irish)
	Location in Ireland
Location	County Donegal, Ireland
Coordinates	55°08′17″N 7°29′56″W / 55.138°N 7.499°W
Primary inflows	River Swilly
Settlements	Inishowen

Lough Swilly (Irish: Loch Súilí, meaning 'lake of eyes')^[1] in Ireland is a glacial fjord or sea inlet lying between the western side of the Inishowen Peninsula and the Fanad Peninsula, in County Donegal. Along with Carlingford Lough and Killary Harbour it is one of three glacial fjords in Ireland.^[2]^[3]

Name

Both Lough Swilly (Irish: Loch Súilí) and the adjoining River Swilly (An tSúileach)^[4] have the same derivation,^[5]^[6]^[7] and are sometimes associated with a legendary multi-eyed sea monster, Suileach, that was reputedly killed by Saint Colmcille (521–597).^[8]^[9] In The Origin and History of Irish Names of Places (1900), the historian Patrick Weston Joyce writes that súil may refer to whirlpools or to eyes and that suileach means "abounding in eyes or whirlpools".^[7]

Geography and ecology

Located on the Fanad Peninsula, in County Donegal, the northern extremities of the lough are marked by Fanad Head with its lighthouse and Dunaff Head. Towns situated on the lough include Buncrana on Inishowen and Rathmullan on the western side. At the southern end of the lough lies Letterkenny.

In the south of the lough a number of islands (Burt, Inch, Coney, Big Isle) were poldered and the land reclaimed during the 19th century for agriculture and the Londonderry and Lough Swilly Railway constructed embankments on the line from Derry to Letterkenny. These reclaimed lands are now wetlands associated with wildlife conservation and birdwatching, and support over 4,000 whooper swans and thousands of Greenland white front, barnacle, greylag and brent geese.^{[citation needed]}

The lough is known for its wildlife-watching (dolphins, porpoise, seabirds, migratory geese and swans) and diving on a number of ship wrecks,^[1] including SS Laurentic sunk by a German mine (possible torpedo), which went down with 3,211 ingots of gold of which 3,191 were recovered.^[10]

History

The lough, and the Grianán Ailigh hill fort (early fortification and palace dating from 2000 to 5000 BC) at its southeastern bend, were recorded on Ptolemy's map of the world. It has a number of early Stone Age monuments and Iron Age fortifications along its shores, as well as a number of shell middens dated to approximately 7000 BC.^[11]

Swilly was the departure point for the 'Flight of the Earls' in 1607. This event, which followed a failed uprising in September 1607, saw Hugh O'Neill, 2nd Earl of Tyrone, and Rory O'Donnell, 1st Earl of Tyrconnell (the last Gaelic chieftains in Ireland at that time), set sail from Rathmullan with ninety of their followers.^[12]^[13]

During a gale on 4 December 1811, the Royal Navy 36-gun Apollo-class frigate HMS Saldanha was shipwrecked in Lough Swilly. There were no survivors out of the estimated 253 aboard, with approximately 200 bodies washed up on shore.^[14]

Due to its natural shelter and its depth, the lough was an important naval port. In October 1798, immediately prior to the outbreak of the Napoleonic wars, a French fleet carrying Wolfe Tone of the United Irishmen, plus troops to assist in 1798 rebellion, was intercepted and defeated in a naval battle at the entrance to Lough Swilly. Subsequently, Tone was captured and taken ashore at Buncrana on the east side of the Swilly.^[15]

A subsequent reassessment of the threat of invasion led to the building of a series of fortifications guarding the different approaches and landing points within the lough which were completed between 1800 and 1820.^[16] Martello towers were built around 1804 to defend the approaches to Derry. The six on the lough cost €1,800 each, were armed with smoothbore cannon, firing round shot and were completed in six months.^[17] Immediately prior to World War I the War Office improved the Napoleonic forts and their armaments as well as adding another fort at the entrance to the lough at Lenan Head with 9-inch (23 cm) guns (12-mile range) – the largest in Ireland at the time. The remains of these fortifications are still at Lenan Head Fort, Fort Dunree (now a military and wildlife museum), Ned's Point, Buncrana, Inch Fort and on the west coast at Rathmullan, Knockalla and Macamish Point.^[18]

During the First World War, the lough was used by the Royal Navy as an anchorage for elements of the Grand Fleet, an amalgamation of the pre-war Home and Atlantic Fleets, under Admiral Sir John R. Jellicoe and a gathering/staging point for Atlantic convoys.^[19]^[20] During this period a boom was placed across the lough between Macamish Point and Ned's Point, supported by a number of trawlers, to prevent U-boat attacks. After the Irish War of Independence the lough was also one of the Treaty Ports specified in the Anglo-Irish Treaty until its final handing over at Fort Dunree in 1938.^[20]

According to exhibits at Fort Dunree, during World War II Irish troops operated the guns there with explicit instructions to fire at any ship that might threaten Irish neutrality by entering the natural harbour. On one occasion in this period, a Royal Navy ship entered the lough and – while it did not initially respond to signals that it should turn back – left the area without any action being taken.^{[citation needed]}

The trains of the Londonderry and Lough Swilly Railway served the area around Lough Swilly until 1953, when the company's trains were replaced by buses. These operated until 2014, when the company was closed down and liquidated.

References

Notes

^ ^a ^b Pierce 2011, Irish Times.
^ Beattie & Lynch 2000, p. 4.
^ "Killary Harbour". Discover Ireland. Archived from the original on 8 November 2018. Retrieved 7 November 2018.
^ Mills 2011, p. 446.
^ Northern Ireland Place-Name Project [@placenamesni] (6 August 2021). "Lough Swilly takes its name from the Swilly River in Donegal. It has its origins in the Irish name An tSúileach 'the one with eyes'" (Tweet) – via Twitter.
^ "Loch Súilí / Lough Swilly (see archival records)". Placenames Database of Ireland. Retrieved 22 December 2023.
^ ^a ^b Joyce 1900, p. 440.
^ MacKillop 2004.
^ Donegal County Council.
^ Scoltock 2016, synopsis.
^ Kimball 1998, p. 163.
^ "Flight of the Earls Centre". Donegal.ie. Archived from the original on 8 November 2018. Retrieved 7 November 2018.
^ Beattie & Lynch 2000, p. 78.
^ Maguire 2018.
^ Beattie & Lynch 2000, p. 16.
^ Kerrigan 1995, p. 236-242.
^ Stevenson 1995, p. 11-28.
^ Kerrigan 1995, p. 266-267.
^ Friel 2015.
^ ^a ^b Beattie & Lynch 2000, p. 18.

Sources

Beattie, Seán; Lynch, Martin (2000). Inishowen: Paintings and Stories from the Land of Eoghan. Dundurn. ISBN 9781900935173.
Friel, Deirdre (2015). "The Role of Lough Swilly in WW1". Fanad Lighthouse. Archived from the original on 7 April 2019. Retrieved 7 November 2018.
Joyce, Patrick Weston (1900). "Size ; Shape". The origin and history of Irish names of places. p. 440. In some parts of the country it [súil] is applied to a whirlpool in a river ; and in this sense it has given name to the river Swilly in Donegal, which is called in the Annals, suileach, i. e. abounding in eyes or whirlpools. The river gave name to Lough Swilly
Kerrigan, Paul M. (1995). Castles and fortifications in Ireland, 1485–1945. Collins Press. ISBN 1898256128.
Kimball, Michael J. (1998). The Lough Swilly Archaeological Survey: Investigations into the Neolithic Transition in Eastern Donegal, Ireland, Volume 1. University of Wisconsin, Madison.
Pierce, Seán (2011). "Sweeping swiftly over Swilly". The Irish Times.
Mills, David (2011). A Dictionary of British Place-Names. p. 446. ISBN 9780199609086. Swilly (Súileach) ( river ) Donegal. Suileach 1258. 'Seeing one'. The name probably has supernatural connotations
MacKillop, James (2004). "Suileach". A Dictionary of Celtic Mythology. Oxford University Press. ISBN 9780198609674. Suileach [..] Multi-eyed, eponymous sea-monster of Lough Swilly (Co. Donegal) thought to have been dispatched by St Colum Cille (521–95)
Scoltock, Jack (2016). We Own Laurentic. CreateSpace. ISBN 9781523742080. [Laurentic] was mined at the mouth of Lough Swilly, Ireland in 1917. It sank in forty metres of water with the loss of 354 men. From 1917 to 1921 royal navy divers salvaged over 3,000 gold bars
Maguire, Stephen (2018). "Map Sheds New Light on Hundreds of Inishowen Shipwrecks". Donegal Daily.
Stevenson, Ian (1995). "Two Irish Loughs". Redan: Journal of the Palmerston Forts Society. Gosport.
"Reimagining Letterkenny Market Square" (PDF). Donegal County Council. The River Swilly [..] takes its name from Suileach (sharp sighted), a man eating water monster known for its many eyes and immense size