Dun Briste Sea Stack, Sea stack at Downpatrick Head, County Mayo, Ireland
The limestone sea stack reaches 45 meters in height and stands 80 meters from the mainland cliffs of Downpatrick Head.
In 1393, severe weather conditions and strong tides separated this formation from the mainland, creating the isolated stack structure visible today.
Scientists who landed by helicopter in 1980 found remains of stone walls, cultivation ridges, and a medieval house at the top.
Visitors can observe the stack from multiple viewing platforms at Downpatrick Head, located 5 kilometers north of Ballycastle in County Mayo.
The geological layers of the stack contain sedimentary rocks from the Carboniferous period, spanning 350 million years of Earth's history.
Location: Republic of Ireland
Elevation above the sea: 45 m
GPS coordinates: 54.32767,-9.34814
Latest update: March 4, 2025 01:59
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