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Looking Out Across Dao, Niger, and Harmakhis Valles
MGS MOC Release No. MOC2-250, 5 October 2000
From left to right, the first major valley, Dao Vallis, runs diagonally from the upper left to just past the lower center of the image. Niger
Vallis joins Dao Vallis just above the center of the frame. Harmakhis Vallis extends diagonally across the right half of the picture, toward the
lower right. These valleys are believed by some to have been formed--at least in part--by large outbursts of liquid water some time far back
in the martian past, though there is no way to know exactly how many hundreds of millions or billions of years ago this might have occurred.
NASA/JPL/Malin Space Science Systems