"Dubh Artach"@en . "3000.77"^^ . "10.9728"^^ . "Dubh Artach (/du\u02D0\u02C8\u0251rt\u0251\u02D0x/; Scottish Gaelic: [t\u032Auh ar\u02E0\u0283t\u032A\u0259x]) is a remote skerry of basalt rock off the west coast of Scotland lying 18 miles (29 km) west of Colonsay and 15 miles (24 km) south-west of the Ross of Mull.A lighthouse designed by Thomas Stevenson with a tower height of 145 feet (44 m) was erected between 1867 and 1872 with a shore station constructed on the isle of Erraid."@en . . . .