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Mull,island, 351 sq mi (909 sq km), Argyll and Bute, NW Scotland, largest island of the Inner Hebrides, separated from the mainland by the Sound of Mull and the Firth of Lorn. The land is mountainous, rising from the deeply indented coast line to 3,169 ft (966 m) at Ben More. Mull has gardens and farms. Tobermory, a summer resort, is the chief town. Several medieval castles still stand.
an island in the Atlantic Ocean, in the archipelago of the Hebrides Islands; part of Great Britain (Scotland). Area, 782 sq km.
Mull is separated from the island of Great Britain by the narrow sounds of Mull and the Firth of Lome. The shores are extremely broken up and predominately rocky. The island is composed of granite and gneiss. Its surface consists of rocky highlands and depressions (maximum altitude, 966 m). Meadows, heaths, and peat bogs cover the island. There is sheep raising. Potatoes, barley, and oats are grown on Mull. Fishing is an important occupation. There are quarries located on the island.