NASA's Mars Global Surveyor shows landforms in southeastern Ius Chasma, part of the Valles Marineris trough system on Mars. Evident are are light-toned rock outcrops and a small butte, the remnant of some formerly more extensive rock unit.

1 August 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows landforms in southeastern Ius Chasma, part of the Valles Marineris trough system. Near the top of the image are light-toned rock outcrops; at the bottom center is a small butte--the remnant of some formerly more extensive rock unit. The lower two thirds of the picture is dominated by dark, windblown sand dunes. The image is located near 8.7°S, 79.2°W, and covers an area about 3 km (1.9 mi) across. Sunlight illuminates the terrain from the lower left.

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