
Inishtrahull (, possibly "island of the empty beach" or "island of the yonder beach") is the
most northerly island of
Ireland
Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
. It has an area of and lies about northeast of
Malin Head
Malin Head () is the Extreme points of Ireland, most northerly point of mainland Ireland, located in the townland of Ardmalin on the Inishowen peninsula in County Donegal. The head's northernmost point is called Dunalderagh at latitude 55.38ºN ...
,
County Donegal
County Donegal ( ; ) is a Counties of Ireland, county of the Republic of Ireland. It is in the Provinces of Ireland, province of Ulster and is the northernmost county of Ireland. The county mostly borders Northern Ireland, sharing only a small b ...
, and just over southwest of the island of
Orsay
Orsay () is a Communes of France, commune in the Essonne Departments of France, department in Île-de-France in northern France. It is located in the southwestern suburbs of Paris, France, from the Kilometre Zero, centre of Paris.
A fortifie ...
, in the
Inner Hebrides
The Inner Hebrides ( ; ) is an archipelago off the west coast of mainland Scotland, to the south east of the Outer Hebrides. Together these two island chains form the Hebrides, which experience a mild oceanic climate. The Inner Hebrides compri ...
of
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 ...
. The most northerly landfall of Ireland, the Tor Beg rock, is another kilometre to the north. Inishtrahull is home to
Ireland's northernmost lighthouse. The island had a resident community until 1929 and the lighthouse was staffed until 1987. Today it is uninhabited and has been designated a
protected area
Protected areas or conservation areas are locations which receive protection because of their recognized natural or cultural values. Protected areas are those areas in which human presence or the exploitation of natural resources (e.g. firewood ...
due to its wildlife.
Geology
The island is formed of a
granitic
A granitoid is a broad term referring to a diverse group of coarse-grained igneous rocks that are widely distributed across the globe, covering a significant portion of the Earth's exposed surface and constituting a large part of the continental ...
gneiss
Gneiss (pronounced ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. This rock is formed under p ...
, a type of
metamorphic rock
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock ( protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, caus ...
, which is known as Inishtrahull Gneiss. It is dated at 1.7 billion years old, making it
Paleoproterozoic
The Paleoproterozoic Era (also spelled Palaeoproterozoic) is the first of the three sub-divisions ( eras) of the Proterozoic eon, and also the longest era of the Earth's geological history, spanning from (2.5–1.6 Ga). It is further sub ...
in age, and is the oldest known rock on the Irish Islands. The Inishtrahull Gneiss is considered to form part of the
Rhinns complex that is also exposed on the islands of
Islay
Islay ( ; , ) is the southernmost island of the Inner Hebrides of Scotland. Known as "The Queen of the Hebrides", it lies in Argyll and Bute just south west of Jura, Scotland, Jura and around north of the Northern Irish coast. The island's cap ...
and
Colonsay
Colonsay (; ; ) is an island in the Inner Hebrides of Scotland, located north of Islay and south of Isle of Mull, Mull. The ancestral home of Clan Macfie and the Colonsay branch of Clan MacNeil, it is in the council area of Argyll and Bute and ...
. The Rhinns complex is correlated with the Ketilidian metamorphic belt of southern Greenland and the Svecofennian of Scandinavia.
Flora and fauna
Among the algae present at Inishtrahull, ''
Bonnemaisonia asparagoides
''Bonnemaisonia asparagoides'' is a species of red alga in the family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). ...
'', ''
Callophyllis laciniata'', ''
Kalymenia reniformis'', ''
Sphaerococcus coronopifolius'', ''
Lomentaria articulate'', ''
L. orcadensis'', ''
Rhodymenia pseudopalmata'', ''
Plumaria plumose'', ''
Ceramium shuttleworthianum'', ''
Heterosiphonia plumose'', ''
Nitophyllum punctatum'', ''
Hypoglossum hypoglossoides'', ''
Drachiella spectabilis'', ''
Odonthalia dentate'', ''
Osmundea pinnatifida'', ''
Polysiphonia lanosa'', ''
P. stricta'', ''
Enteromorpha intestinalis'', ''
Ulva lactuca
''Ulva lactuca'', also known by the common name sea lettuce, is an edible green alga in the family Ulvaceae. It is the type species of the genus ''Ulva''. A synonym is ''U. fenestrata'', referring to its "windowed" or "holed" appearance. De ...
'', ''
Fucus serratus
''Fucus serratus'' is a seaweed of the north Atlantic Ocean, known as toothed wrack, serrated wrack, or saw wrack.
Description and reproduction
''Fucus serratus'' is a robust alga, olive-brown in colour and similar to ''Fucus vesiculosus'' an ...
'', ''
F. spiralis'' and ''
Ascophyllum nodosum
''Ascophyllum nodosum'' is a large, common cold water seaweed or brown alga ( Phaeophyceae) in the family Fucaceae. Its common names include knotted wrack, egg wrack, feamainn bhuí, rockweed, knotted kelp and Norwegian kelp. It grows only in the ...
'' have been recorded.
Important Bird Area
The island has been designated an
Important Bird Area
An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations.
IBA was developed and sites are identified by BirdLife Int ...
(IBA) by
BirdLife International
BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding i ...
because it supports breeding populations of several species of
seabird
Seabirds (also known as marine birds) are birds that are adaptation, adapted to life within the marine ecosystem, marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent ...
s as well as being a winter feeding ground for
barnacle geese
The barnacle goose (''Branta leucopsis'') is a species of goose that belongs to the genus '' Branta'' of black geese, which contains species with extensive black in the plumage, distinguishing them from the grey '' Anser'' species. Despite its s ...
.
Population and history
The island is now uninhabited but had a resident community until 1929 and lighthouse keepers until 1987.
The evacuation of the community from Inistrahull took place
en bloc
En bloc means "all together". It may refer to:
* '' En Bloc'', a Singaporean television drama
* A type of ammunition loading in firearms
{{disambiguation ...
in 1929. The matter was raised in a
Dáil debate on
illegal fishing
Illegal, unreported and unregulated fishing (IUU) is an issue around the world. Fishing industry observers believe IUU occurs in most fisheries, and accounts for up to 30% of total catches in some important fisheries.
Illegal fishing takes pl ...
in November 1929 by the
TD for the area,
Deputy Frank Carney. The Deputy stated that Inishtrahull was one of the few places in the country where the population had actually increased by almost 100% from 1881 to 1901. He said that the people on the island had a school and a graveyard and earned their livelihood from the fishing industry with very small boats for inshore fishing and that they could line fish and fish with nets during the
herring
Herring are various species of forage fish, belonging to the Order (biology), order Clupeiformes.
Herring often move in large Shoaling and schooling, schools around fishing banks and near the coast, found particularly in shallow, temperate wate ...
season. Deputy Carney said that, ordinarily, they were able to make a reasonable living. However, he said that because of illegal fishing by "Scotch and English trawlers and French fishing smacks" the islanders had been compelled some weeks earlier to evacuate the island, desert their homes and leave only a lighthouse keeper behind.
Responding, the Minister for Fisheries,
Fionán Lynch
Fionán Lynch (; 17 March 1889 – 3 June 1966) was an Irish revolutionary, barrister, politician and judge of the Circuit Court (Ireland), Circuit Court from 1944 to 1959, Leas-Cheann Comhairle of Dáil Éireann from 1938 to 1939, Minister for ...
TD said that he did not agree that the people had left the island because of illegal fishing and was making enquiries as to their current circumstances. The Minister said that he "would like to feel that everything was being done to keep them from being a permanent charge on home assistance." The Minister later sent a Principal Officer from his department to report on their circumstances. The Minister then reported in the Dáil that "four of the
ix Inistrahullfamilies derived their livelihood from the Irish Lights boat service to the island, in which they are still able to engage" and that there was no case for state intervention. He also said that his Officer's report indicated that the resettled Islanders were not in "poor circumstances."
Last sight of Ireland
Inishtrahull is home to the most northerly Irish lighthouse run by the
Commissioners of Irish Lights. The lighthouse was first put into operation in 1813 largely because ships of the
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
had begun to use
Lough Foyle
Lough Foyle, sometimes Loch Foyle ( or "loch of the lip"), is the estuary of the River Foyle, on the north coast of Ireland. It lies between County Londonderry in Northern Ireland and County Donegal in the Republic of Ireland. Sovereignty over t ...
. Today its light flashes every 30 seconds.
[Irish Lights Commissioners](_blank)
The ruins of the old lighthouse as well as
a new (1956) lighthouse can be found on the island. Automation of the lighthouse was completed in March 1987 and the last three Lighthousekeepers left the station on 30 April 1987.
Over the centuries, Ireland has been the source of millions of emigrants bound for the "New World" across the Atlantic. For many of those emigrants, especially those who departed from
Derry
Derry, officially Londonderry, is the second-largest City status in the United Kingdom, city in Northern Ireland, and the fifth-largest on the island of Ireland. Located in County Londonderry, the city now covers both banks of the River Fo ...
, Inistrahull and its lighthouse had a special significance. As one emigrant recalled:
Attractions
Inishtrahull is well known for its wildlife and is designated a
Special Area of Conservation
A special area of conservation (SAC) is defined in the European Union's Habitats Directive (92/43/EEC), also known as the ''Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora''. They are to protect the 220 habitats and ap ...
and a
Special Protection Area
A special protection area (SPA) is a designation under the European Union Directive on the Conservation of Wild Birds. Under the Directive, Member States of the European Union (EU) have a duty to safeguard the habitats of migratory birds and cer ...
by the
National Parks and Wildlife Service.
Inishtrahull SAC
npws.ie; accessed 7 November 2016.
The island's geographical location and lighthouse attract many unusual birds, as well as a population of grey seal
The grey seal (''Halichoerus grypus'') is a large seal of the family Phocidae, which are commonly referred to as "true seals" or "earless seals". The only species classified in the genus ''Halichoerus'', it is found on both shores of the Nort ...
s. The island and its adjacent 90-metre depth tidal sound attract basking sharks and cetaceans in large numbers during the summer months. Many scuba-divers use the Islands Port Mór as a lunch spot while out surveying the hundreds of wrecks off its shores. Access to the island is limited by the dangerous tides and currents around Malin Head
Malin Head () is the Extreme points of Ireland, most northerly point of mainland Ireland, located in the townland of Ardmalin on the Inishowen peninsula in County Donegal. The head's northernmost point is called Dunalderagh at latitude 55.38ºN ...
and the island itself. There are landing restrictions enforced by The Commissioners of Irish Lights (present owners of the Island). Particular care is requested by visitors during the breeding bird period of May–July. there are two Geocaches on the island.
References
{{Authority control
Important Bird Areas of the Republic of Ireland
Important Bird Areas of Atlantic islands
Islands of County Donegal
Protected areas of County Donegal
Special Areas of Conservation in the Republic of Ireland
Uninhabited islands of Ireland