Ailsa Craig (; ) is an island of in the outer Firth of Clyde, west of mainland Scotland, upon which granite has long been Quarry to make curling stones. The now-uninhabited island comprises the remains of a magmatic pluton formed during the same period of igneous activity as magmatic rocks on the nearby Isle of Arran.
The island, colloquially known as "Paddy's Milestone" because it is halfway between Belfast and Glasgow, was a haven for Catholic Church during the Scottish Reformation in the 16th century, but is today a bird sanctuary, providing a home for huge numbers of and an increasing number of .
The island is known in modern Gaelic as Creag Ealasaid (Elizabeth's rock) or Ealasaid a' Chuain (Elizabeth of the ocean); these, however, represent folk etymological alterations of Allasa, the "true name" of the island, which remained in use in Arran, the nearest Gaelic-speaking district, into the 20th century. The same applies to Carraig Alastair (Alexander's rock), an Irish name for Ailsa Craig.
The island is sometimes known as "Paddy's Milestone", PADDY'S MILESTONE 1947 Film . National Library of Scotland. being approximately the halfway point of the sea journey from Belfast to Glasgow, a traditional route of emigration for many Irish labourers going to Scotland to seek work. The Bass Rock is sometimes nicknamed "the Ailsa Craig of the East", although its prominence in the Firth of Forth is not as great as that of Ailsa Craig in the Firth of Clyde.
Geologically, Ailsa Craig comprises the remains of a Paleogene pluton. Its prominence is due to the Granite's hardness, making it more resistant to erosion than the surrounding Permian and Triassic Sedimentary rock rocks into which it was intruded. The microgranite is itself intruded by a series of olivine Diabase dykes. Ailsa Craig, along with neighbouring Arran, is part of the North Atlantic Igneous Province, a widespread system of magmatic rocks formed during the initial stages of the opening of the Atlantic Ocean. Boulders of distinctive Ailsa Craig microgranite known as Glacial erratic were transported by glaciers as far afield as County Donegal and Pembrokeshire.
The microgranite's unusual composition and crystalline texture make it particularly hard and resistant to impact, making this rock a favoured material for the manufacture of curling stones. Ailsa Craig Retrieved 17 October 2007 The "blue hone" variety is now used for the lower part of the stone which contacts the ice (the running band) while the "common green" variety is used to make the body of the stone (including the striking band). A third variety, "red hone", is similar to blue hone but has now been exhausted.
The island has a fresh-water spring but no electricity, gas, sewage or telephone connections.
The chief well on the island lies above 'the Loups', and this was used by the Northern Lighthouse Board which built a cistern there and piped the water to the lighthouse complex. The 'Horse Well' was located behind the gasworks; the 'Castle Well' stands above Ailsa Castle, and finally the Garry Loch sits higher up and once supplied water to the tenant's cottage.Lawson (1895) p. 62
Fishermen seem to have used the island for centuries, first being noted in 1549Lawson (1895) p.11 and it is recorded that they even at one time slept beneath sails stretched over hollows on the beach.Lawson (1895)p.15
A row of fishermen's cottages was under construction in the 1840s. However, the main developer died, and the project was abandoned, with the area used instead as a walled kitchen garden until the gasworks was built.Lawson (1895) p. 34
Apart from sold to the Northern Lighthouse Board in 1883,Lawson (1895) p.21 since the 16th century the island has belonged to the Earls of Cassillis. In 1831, Archibald Kennedy, 12th Earl of Cassillis, was created the first Marquess of Ailsa, taking the title from Ailsa Craig.
In May 2011, it was announced that the island was for sale by Charles Kennedy, 8th Marquess of Ailsa, with an asking price of £2,500,000, but as of March 2013 it was unsold and the price was "offers over £1,500,000". "Ailsa Craig island in Firth of Clyde put up for sale" . BBC News. Retrieved 1 March 2013. It was reported in December 2013 that an unnamed environmental trust had placed a formal bid, and in April 2014 the National Trust for Scotland was reported to be considering a bid. As of 2020, the island was still owned by David Kennedy, 9th Marquess of Ailsa and was leased by the Royal Society for the Protection of Birds until 2050.
Four cottages, a shed, a railway, a winch house, the main pier, and an area of adjacent land are now in the ownership of the Scottish Indian businessman
Margaret Girvan ran a tearoom in a wooden building that stood next to the tacksman's cottage,Tait, (2005) p.13 famed for its pristine white table cloths and fresh scones. Girvan kept goats in stone-built goat rees or pens on the good grazing near Garry Loch. The feral billy goats were wont to interfere with these nanny goats and this was another reason for their demise.
An annual hunt of the Northern gannet or gannets took place in the days of Robert Burns as the flesh was considered a delicacy.Purdie p.22 Robert Burns's maternal uncle Samuel Burns was involved in the solan goose trade.
Hugh was however discovered by The Reverend Andrew Knox, a Protestant minister (who later became both Lord Bishop of the Isles and Lord Bishop of Raphoe). Barclay thereafter deliberately drowned himself in the seaPennant, Pages 217–218 or did so accidentally whilst trying to escape.Robertson, George (1823). A Genealogical Account of the Principal Families in Ayrshire, more particularly in Cunninghame. Vol.1. Pub. Irvine: Cunninghame press. pp. 72–73.
Another version states that Andrew Knox lay in wait for Hugh with nineteen others and ambushed him at the shingle beach with the result that he attempted to defend himself until he was forced back into the sea and drowned.Lawson (1895) p. 30
The lighthouse was automated in 1990 and converted to solar electric power in 2001; the island has been uninhabited since automation in 1990. Northern Lighthouse Board – Automation of lighthouse Retrieved on 28 January 2008 Ailsa Craig and its lighthouse feature extensively in Peter Hill's 2003 book .
Two substantial with concrete housings were built in 1866, one at the north end of the island near the Swine Cave reached by 'the Loups' pathTait (2005) p.25 and the other at East Trammins on the south end. Both were powered by compressed air that was piped from the lighthouse, where a gas-powered compressor was housed until 1911 when oil-powered engines were installed.Tait(2005) p.26 One of the compressed air pipelines can still be seen within 'the Loups' path that was constructed above it. The compressed air cylinders that held the required store of air are still prominent features, especially at the Trammins foghorn. Both foghorns were decommissioned in 1966 and a Tyfon fog signal was used until 1987 when improvements in ship navigation made it also redundant.
The gasworks are still a prominent feature on the island and the cable-powered tramway was partly built to haul wagons full of coal up to it from the North Port. Two gasholders held the coal gas that powered both the compressed air pump and the lighthouse light, however in 1911 the light was converted to incandescent lighting which was powered by electricity.Tait (2005) p.19Tait(2005) p.24 The gas works became redundant at this time. Lawson records that oil was used to produce the gas for the lighthouse light.Lawson (1895) p.76
This well-built tram line is largely intact and has a gauge of 914 mm (3 ft) with junction/points at the gas works and a further set of points that led to a siding that ran down parallel to the gable end of the gas works to presumably collect the coal ash for disposal. The main line runs on down to the lighthouse and its ancillary buildings, taking a right-angled bend to run parallel to the southern end of the lighthouse buildings block.Tait (2005) p.14 This section of the line was worked by hand and at least two wagons remain at the site together with a set of spare wheels at the gas works.
The mineral line was built by the Ailsa Craig Granite Company Ltd. in 1909 and ran from the quarry at Kennedy's Nags via the stone crusher near the south foghorn to the Quarry Pier.Tait (2005) p. 28 This crudely constructed narrow gauge line was mainly horse drawn, although wagons were also moved by hand or hauled up inclines by winding engines. The mineral railway at the quarry end had a least one siding and a mobile steam crane loaded the larger granite blocks into the wagons that were transported to the stone crusher at the Trammins near the south foghorn, smaller stones being loaded and even moved by hand.
Wagons or bogies were winched up to the substantial stone crusher and gravity was used to deliver the different grades of road stone to the waggons below that were then hauled by horses to the Quarry Pier via a line that ran in front of the lighthouse buildings and took a tight right-angled bend to run up the substantial stone-built incline to the storage area in preparation for delivery via sea to the mainland.Tait (2005) p.9 Kerb stones and stone railway sleepers for sections of the Scotch gauge horse-drawn railway from Ardrossan to Benslie were also produced.
Photographs taken in the late 19th century show the horse-drawn wagons passing in front of the lighthouse and portray the substantial railway incline and storage area. At times the production outstripped the storage capacity and a photograph shows at least three piles of different grades of road stone stockpiled in front of the lighthouse enclosure. The track at the crusher had a siding that ran to the crusher and a set of points that led to the Quarry Pier main line.Tait (2005) p.30
The Ailsa Craig Granite Company was never a financially sound business and effectively closed in 1928. The course of the mineral line is still evident near the quarries as a linear embankment that ends below Kennedy's Nag. Various artefacts of the quarry enterprise remain, including concrete blocks at Kennedy's Nag and steel and concrete remnants of the stone crusher near the south foghorn.
Ailsa Craig produced two types of granite for curling, Blue Hone and Ailsa Craig Common Green. Blue Hone, which is unique to Ailsa Craig, has very low water absorption, which prevents the action of repeatedly freezing water from eroding the stone. Ailsa Craig Common Green is a lesser quality granite than Blue Hone. In the past, most curling stones were made from Blue Hone but the quarry is restricted by environmental conditions that exclude blasting.
Kays of Scotland has been making curling stones since 1851 and has the exclusive rights to the Ailsa Craig granite, granted by the Marquess of Ailsa. A "harvest" of Ailsa Craig granite by Kays took place in 2013, after a hiatus of 11 years; 2,000 tonnes were harvested, sufficient to fill anticipated orders until at least 2020. A subsequent harvest was held in the winter of 2020.
Pennant and others have noted that the only trees growing on the island are elders ( Sambucus nigra) or bourtrees in the Scots dialect, found as a grove known as The Bourtrees at the Trammins on the southern end of the island.Tait (2005) p.27 This visitor also rather quaintly mentions that he was surprised to find three species of "reptiles" by which he meant , namely a naked black slug, the garden snail Cornu aspersum and one of the common striped snails of the genus Cepaea. He speculated that they had accidentally been brought over from the mainland secreted within vegetables.Pennant, Page 216
( Anguis fragilis) are found on the island, although they suffered greatly when and were introduced by Lord Ailsa. The badgers did not survive long, but the raccoons bred for a number of years.Lawson (1895), Page 59
The mammal fauna included , and at one time goats, whilst were bred here as food for the inhabitants. The billy goats were shot for sport in the 19th century and no longer survive; only a mounted head of one remains at the McKechnie Institute in Girvan.Tait (2005) p.17 The rabbits and goats may have been originally introduced to supply food for the fishermen and were mentioned by Pennant in 1772Tait (2005) p.16 and by the Rev Abercummie in 1688, who called them by the old name of coneys.Lawson (1895) p.14
The island is now a bird sanctuary, leased by the RSPB until 2050. "RSPB stress importance of Ailsa Craig, but are not in negotiations to purchase iconic landmark" . RSPB. Retrieved 14 July 2011. Huge numbers of northern gannet nest here.
were probably introduced via ; supposedly, a coal boat that sank offshore was the first culpritLawson (1895), Page 63 and caused great harm to the nesting bird populations, with the puffins proving vulnerable to the extent of extinction as breeding birds. After a long campaign using pioneering techniques, the rats were eradicated in 1991, and now puffins are once again raising young on the island with many other benefits accruing to both the fauna and the flora.Tate, Page 76
In a small glen above Ailsa Castle, a small freshwater body known as the Garry Loch is located at an altitude of ,Tait (2005) p.38 with a depth of at least .Lawson (1895) p.36
== Gallery ==
A shocking death was that of a young boy from Girvan who was sitting amongst loose rocks, pulling out stones and throwing them into the sea when a very large boulder started to move and crushed him. The stone was too heavy to shift and help from the mainland was required to extract the body of the unfortunate victim. In 1887 a ten-year-old boy died whilst collecting eggs at the West Craigs.Lawson (1895) p.73
Placenames
Geography and geology
Facilities
Owners
History
Ailsa Castle
Spanish invasion
Smuggling
Chapels
Lighthouse, foghorns and gas works
Railways
Curling stones
Natural history
In popular culture
Accidents
See also
Notes
External links
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