This image shows some dark slope streaks where small impact craters are visible at their apexes. These craters have little splashes of dark ejecta, which indicate that they were throwing up the same dark-toned material that the slope streak has revealed.

These dark slope streaks and the medium-toned one to the left show longitudinal ridges that are indicators of the flow of material during the slope streak event. Older, almost completely faded slope streaks can be seen to source off of the crater in the upper right corner of this portion of the image.
Written by: Ross A. Beyer

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible: Image: NASA/JPL/University of Arizona

For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.