Disko dĭs´kō [key], island, 3,312 sq mi (8,578 sq km), in the Davis Strait off W Greenland. It is mountainous (rising to 6,296 ft/1,919 m) and partly glaciated. Telluric iron and lignite have been found there. Qeqertarsuaq, the island's chief town, is on the southern shore. In Disko Bay to the south are some of the world's largest shrimp beds. Disko was first reached (c.985) by Eric the Red.

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