Ionian Mons | 29ers.com

Ionian Mons 29er

Ionian Mons is a long, curved double-ridge mountain on Jupiter's moon Io, whose taller eastern ridge rises about 12.7 km, placing it among the tallest peaks in the solar system. Like Io's other mountains it is tectonic — a block of crust thrust upward and tilted — not a volcano.

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NASA/JPL/University of Arizona (Galileo)
Height41,700 ft ~12.7 km (east ridge) Solar System Rank6 of 13 BodyIo (moon of Jupiter) TypeTectonic mountain (double ridge) LocationEquatorial Io; an isolated ~159 km ridge massif Coordinates8.62° N, 236.57° W DiscoveredCharacterized from NASA Galileo orbiter imagery (1990s)
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Photos of Ionian Mons.

Highest-resolution true-color view of Io (no dedicated image of Ionian Mons exists) (NASA/JPL/University of Arizona (Galileo))

Quick facts

East ridge rises ~12.7 km, taller than Everest base-to-peak
A curved double-ridge tectonic massif, ~159 km long
Named after the Ionian Sea
Io's mountains form by crustal compression, not volcanism
Imaged in detail by NASA's Galileo orbiter

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