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Last updated on April 16, 2014 at 5:49 EDT
Layered Trough Walls
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Layered Trough Walls

May 14, 2005

This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layers of bedrock exposed in the walls on both sides of an east-west-trending trough in the Memnonia/Mangala Valles region. Large boulders released from these rocky trough walls are found on the slopes and on the trough floor.

Location near: 18.4°S, 148.8°W

Image width: ~3 km (~1.9 mi)

Illumination from: upper left

Season: Southern Winter