Elysium Mons

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Elysium Mons is a volcano on Mars located in the Elysium Planitia, at 25°N, 213°W, in the Martian eastern hemisphere. It stands about 12.5 km above the surrounding lava plains, and about 16 km above the Martian datum. Its diameter is about 240 km, with a summit caldera about 14 km across.

Elysium Mons was discovered in 1972 from images returned by the Mariner 9 orbiter.

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