Elysium Mons

Elysium Mons /ɪˈlɪziəm ˈmɒnz/ is a volcano on Mars located in the volcanic province Elysium, at 25.02°N 147.21°E / 25.02; 147.21, in the Martian eastern hemisphere. It stands about 12.6 km (41,000 ft) above its base, and about 14.1 km (46,000 ft) above the Martian datum, making it the third tallest Martian mountain in terms of relief and the fourth highest in elevation. Its diameter is about 240 km (150 mi), with a summit caldera about 14 km (8.7 mi) across. It is flanked by the smaller volcanoes Hecates Tholus to the northeast, and Albor Tholus to the southeast.

This article is about the volcano on Mars. For other uses, see Elysium (disambiguation).
Elysium Mons
2001 Mars Odyssey THEMIS daytime infrared image mosaic
Feature typeShield volcano
Coordinates25.02°N 147.21°E / 25.02; 147.21
Peak
  • 12.6 km (7.8 mi) 41,338 ft (12,600 m) above plains
  • 16 kilometres (52,000 ft) above datum
DiscovererMariner 9
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