Adamawa Massif (ädämäwäˈ, ădˌəmäˈwə) [key], plateau, c.26,000 sq mi (67,300 sq km), N central Cameroon and E Nigeria, W central Africa. It is sparsely populated, and chiefly used for grazing. Tin is mined there and bauxite mining began in 1976. The Benue River rises on the plateau.
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