This image captured by NASA's Mars Reconnaissance Orbiter appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae.

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This image appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae. Also visible is an arc-shaped ridge at the end of the valley.

The ridge may be a moraine from a glacier. HiRISE may be able to see that the surface of the moraine is coarser than the material in front of the ridge.

This caption is based on the original science rationale.

HiRISE is one of six instruments on NASA's Mars Reconnaissance Orbiter. The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

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