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Rockall

Uninhabited islet in the North Atlantic Ocean

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Through Atlantic Ocean, Iceland and Cold War

The granite rock from which Rockall is comprised formed during the Paleogene period, by magmatism as part of the North Atlantic Igneous Province. Rockall, Hasselwood Rock, 200 metres north, and the skerries of Helen's Reef two kilometers to the northeast are the only emergent parts of the Rockall Plateau. Twenty-nine-metre waves just east of Rockall were reported in 2006 as the largest ever recorded by scientific instruments in the open ocean.

Rockall has appeared on maps since at least 1550 and in literature since at least 1698. Marine surveyors, scientists, adventurers, amateur radio operators, and environmental activists have variously landed on or briefly occupied the islet. The earliest documented landing on Rockall was in 1811 by a small Royal Navy party led by Basil Hall. Rockall's first named geographic location and only occupiable area is Hall's Ledge, named after Basil Hall. The longest known continuous occupation is 45 days, achieved solo in 2014 by Nick Hancock, a surveyor from Edinburgh.

Possession of Rockall was for many decades deemed imperative to claims to the vast surrounding fisheries and oil-rich Atlantic seabed. The Irish Times claims to have reported on the economic value of Rockall's fisheries as long ago as 1861. Driven by Cold War national security concerns, the United Kingdom claimed Rockall in 1955 and incorporated it as part of Scotland in 1972. The UK claims a 12-nautical-mile (22-kilometre) territorial sea at Rockall. While never claiming sovereignty of Rockall, Ireland maintains that UK claims to Rockall are invalid. Denmark (on behalf of the Faroes) and Iceland have lodged claims of the adjoining seabed.

Etymology

The origin and meaning of the name Rockall is uncertain. The name Rocabarraigh is used in Scots Gaelic folklore for a mythical rock that is supposed to appear three times, its last appearance being at the end of the world: "Nuair a thig Rocabarra ris, is dual gun tèid an Saoghal a sgrios". ('When Rocabarra returns, the world will likely come to be destroyed'). Another idea is the name Rockall derives from the Gaelic Sgeir Rocail, meaning 'skerry of roaring' or 'sea rock of roaring', although rocail can also be translated as 'tearing' or 'ripping'.

The Scottish Gaelic name for Rockall, Ròcal, may derive from an Old Norse name that may contain the element fjall, meaning 'mountain'. It is also suggested the name Rockall is from the Norse *rok, meaning 'foaming sea', and kollr, meaning 'bald head'—a word that appears in other place names in Scandinavian-speaking areas.

Legends around the seafaring Irish monk Brendan the Navigator state that he described Rockall in the sixth century.

Irish mythology giant Fionn mac Cumhaill (Finn McCool) allegedly scooped up a chunk of what is now Ulster to fling at a Scottish rival. It missed, instead landing in the Irish Sea to become the Isle of Man. The void left behind filled with water to become Lough Neagh. McCool is then alleged to have thrown a pebble that became what is now widely known as Rockall—alternatively, the pebble flew off north-west as he lifted the chunk of land or when it landed into the sea.

Rockall appears on a 1550 Portuguese chart as 'Rochol', and on one of 1606 as 'Rocol'. The map Nova Francia alio nomine dicta Terranova, anno 1504 (c. 1594), by Cornelis Claeszoon, Jan Doetecom, and Petrus Plancius, shows Rockall named Rookol.

Rockall is named Rokol in its first-known literary reference, Martin Martin's 1698-published A Late Voyage to St Kilda. The book states: "... and from it lies Rokol, a small rock sixty leagues [300 km] to the westward of St Kilda; the inhabitants of this place call it Rokabarra."

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