Tearaght Island

At longitude 10° 39.7' Tearaght is the westernmost of the Blasket Islands, and thus the westernmost island of Ireland. It is also one of the westernmost points in Europe after Iceland,^[3] and Azores. However, there are some exposed rocks further west: Tearaght Rocks, Tearaght Rocks West (10° 41.0'), and Foze Rocks (10° 41.3').^[4][5]

An Tiaracht is about a kilometre from east to west, and 500 metres (1,600 feet) from north to south. The island is divided into two sections, a larger eastern part (254 metres (833 feet) high) and a western part that rises to 116 metres (381 feet). A narrow neck of rock, with a natural tunnel through it, joins the two parts.^[6]

Like the other Blasket Islands, Tiaracht holds large numbers of seabirds, with internationally important populations of Manx shearwater and European storm-petrel. Leach's storm-petrels have also been found there (but not proved to be breeding) in recent years. The number of auks, especially puffins, has apparently fluctuated greatly, though early records are not always reliable.^{[citation needed]}

A lighthouse was established on the island in 1870, and automated in 1988.^[1] The lighthouse, maintained by the Commissioners of Irish Lights, has a tower 17 metres (56 feet) high and the focal height is at 84 metres (276 feet) above sea level, it has a range of 19 nautical miles (35 kilometres; 22 miles).^[1] The light was served by the steepest funicular rail track in Europe^[7] from 1913 until automation.^[1]

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  Rocks near the island
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  The lighthouse on the island
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  Channels used to funnel rainwater into tanks for storage
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  The lighthouse
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  The lighthouse at sunset in 1987
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  The top of a funicular railway for transporting materials from the boat landing up to the lighthouse
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  The lighthouse and sea arch

• Lighthouses in Ireland
• Extreme points of Europe