Valles Marineris, from U.S. Geological Survey Mars Digital Image Mosaic, reproduced at a scale of 230 meters/pixel.
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Image from: Malin Space Science Systems

More about Valles Marineris

This image shows the steep slopes of Valles Marineris at higher resolution. Very high resolution images returned by the Mars Global Surveyor spacecraft allow closer examination of this unusual canyon. These images show slopes descending steeply to the north and south

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Valles Marineris

Next to the Tharsis Ridge is Valles Marineris. Valles Marineris is a large system of canyons that stretches 4000 km (2500 mi) along the equator of Mars. It was first imaged in detail by Mariner 9. As can...more

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