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The labyrinth area of western Valles Marineris on Mars
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The labyrinth area of western Valles Marineris on Mars

March 20, 2003
Mariner 9 view of the "labyrinth" at the western end of Vallis Marineris on Mars. Linear graben, grooves, and crater chains dominate this region, along with a number of flat-topped mesas.