This NASA Mars Global Surveyor image shows a portion of the floor and wall of a trough in the Acheron Fossae region of Mars. Mass movements of dry dust have created the dark slope streaks on the wall of the trough.

12 May 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of the floor and wall of a trough in the Acheron Fossae region of Mars. Mass movements of dry dust, which appears to mantle much of the scene, have created the dark slope streaks on the wall of the trough.

Location near: 37.5°N, 131.0°W
Image width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Winter

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