Skerryvore (from the Gaelic An Sgeir Mhòr meaning "The Great Skerry") is a remote reef that lies off the west coast of Scotland, 12 miles (19 kilometres) south-west of the island of Tiree. Skerryvore is best known as the name given to the lighthouse on the skerry, built with some difficulty between 1838 and 1844 by Alan Stevenson.At a height of 156 feet (48 m) it is the tallest lighthouse in Scotland.