Sikhote-Alin (sēkhətĕ-əlyēnˈyə) [key], mountain range, c.625 mi (990 km) long, S Russian Far East. It is composed of a series of ridges lying between the Sea of Japan and the Ussuri and Amur rivers. Its forests are a source of lumber, and there are deposits of coal, lead, zinc, silver, and tin.
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