Ascraeus Mons


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Ascraeus Mons

(ass-kree -ŭs) A 19-km-high volcano on the Tharsis Ridge of Mars, located at the areographic coordinates 11.9° N latitude, 104.5° W longitude (see areography). It is 400 km wide at its base and has a summit caldera 50 km across. See Mars, volcanoes.