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How big is Olympus Mons ?

April 26, 2017big mons olympus

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How big is Olympus Mons ?

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This is a digital mosaic of Viking Orbiter Images of Olympus Mons Volcano, Mars. The outline of Maryland (with Baltimore, D.C. and Prince George’s County outlined) is plotted at the same scale. The entire Baltimore Washington Metro area fits in the volcano caldera. Data (From Hodges and Moore, USGS Prof. Paper 1534, 1994): Base diameter 800 km Summit elevation 26 km Relief 24-26 km Caldera diameter 65 by 85 km Caldera depth 2.5 km Average flank slope 4deg Inferred age from craters/km 0.06 – 1.