<p>Two views of <a href="https://en.wikipedia.org/wiki/Arsia_Mons" class="extiw" title="en:Arsia Mons">Arsia Mons</a>, based on <a href="https://en.wikipedia.org/wiki/Viking_program" class="extiw" title="en:Viking program">Viking orbiter</a> imagery and <a href="https://en.wikipedia.org/wiki/Mars_Global_Surveyor" class="extiw" title="en:Mars Global Surveyor">Mars Global Surveyor</a> elevation data, from the south (top) and north (bottom).
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Arsia Mons is the southernmost of the <a href="https://en.wikipedia.org/wiki/Tharsis_Montes" class="extiw" title="en:Tharsis Montes">Tharsis Montes</a>. It is depicted using a Viking image mosaic draped over MOLA topography. The topography shows the caldera structure and the massive flank breakouts that produced two major side lobes on opposite sides of the volcano. The vertical exaggeration is 10:1.
NASA/MOLA Science Team
<a rel="nofollow" class="external free" href="http://photojournal.jpl.nasa.gov/catalog/PIA02804">http://photojournal.jpl.nasa.gov/catalog/PIA02804</a>