Süphan Dagi(redirected from Mount Süphan)
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an extinct volcano in Turkey, on the Armenian Highland, near the shore of the lake Van Gölü. Süphan Dagi rises to an elevation of 4,434 m, approximately 2,700 m above the lake. Its massive dome is composed of andesite lavas, with firns and glaciers in the craters. The slopes have mountain steppes.