Story

The story of Cliffs of Moher

Cliffs of Moher

Standing here, you are on top of rocks laid down by an ancient river between 313 and 326 million years ago, when sand, silt and clay poured into a marine basin. The Cliffs of Moher run for about 14 kilometres. At Hag's Head in the south they rise 120 metres above the Atlantic, and they reach their greatest height, 214 metres, just north of O'Brien's Tower, built in 1835 by Sir Cornelius O'Brien.

The name comes from Mothar, an old promontory fort on Hag's Head, demolished in 1808 to provide material for a lookout tower against a feared French invasion. From the cliffs you can see the Aran Islands in Galway Bay. At peak season around 30,000 pairs of birds live here, including Atlantic puffins and razorbills.

Below O'Brien's Tower stands Branaunmore, a 67-metre sea stack that was once part of the cliffs. Film fans may know this coast from The Princess Bride and Harry Potter and the Half-Blood Prince.

This story is compiled from Wikipedia and other open sources; dates and numbers are checked against the source. The text is shared under the CC BY-SA 4.0 licence. Source ↗

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