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Almost Silent Rolling Stones in Kasei Valles
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(Almost) Silent Rolling Stones in Kasei Valles

April 1, 2007
Scene PSP_001640_2125 shows the very steep side of a plateau, part of the northern limit of the Kasei Valles system, which is one of the largest outflow channel systems on Mars.

The difference in elevation here between the mostly flat channel's floor (bottom right) and the top of the plateau (top left) is over 1,300 m (0.8 miles), comparable in height to the Grand Canyon walls.

The Kasei Valles system is much wider than the Grand Canyon, though, getting to be in places 500 km (300 miles) wide. (The Grand Canyon's maximum width is 30 km, or 18 miles).


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