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Sisyphi Spine

June 26, 2006
NASA's Mars Global Surveyor shows a spine of material exposed in the Sisyphi Planum region of Mars. Gullies can be seen on the deeply-shadowed ridge slope.

26 June 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a spine of material exposed in the Sisyphi Planum region of Mars. Gullies can be seen on the deeply-shadowed ridge slope. Mass movement (landsliding) has contributed to the erosion of this ridge and the creation of the apron of talus that surrounds it.

Location near: 70.7°S, 357.0°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Summer

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