The town was founded at the start of the 19th century by John D'Arcy who lived in Clifden Castle (which is now a ruin that can be seen from the Sky Road west of Clifden). Clifden gained prominence in the early 1900s when Guglielmo Marconi built his major transatlantic wireless telegraphy station there to minimize the distance to Newfoundland.
Click on "Show on map" button to see location of the castle
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