Süphan Dagi(redirected from Mount Suphan)
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.