Arran, an island forming part of the Scotch county of Bute, and lying in the great bay between the peninsula of Canty re and the main coast of Scotland, 5 m. E. of the former, from which it is separated by Kilbrannan sound, and 13 m. W. of the latter, from which it is separated by the frith of Clyde. Its greatest length is about 21 m., greatest width about 12 m. The surface is high and rocky, and the scenery wild and picturesque. In the N. part the rugged mountain Goatfell rises to a height of 2,865 ft. The coast rises in many places into bold basaltic cliffs; in others it is low and sandy. The island, of which a large portion is the property of the duke of Hamilton, is divided into two parishes, Kilmory and Kilbride; total pop. about 5,500, supported by the products of small farms, and by trifling local industries. The three villages are Brodick, Lamlash, and Shedog. Many ancient monu-ments, supposed to have been erected by the Druids, are found in Arran. Gaelic is the ordinary language of the people, though English is generally understood.