Crater wall inside Mariner Crater showing gullies, as seen by hirise.  Location is 34.9 degrees south latitude and 195.1 degrees east longitude.  Image was taken by the Mars Reconnaissance Orbiter's HiRISE. The HiRISE camera was built by Ball Aerospace and Technology orporation and is operated by the University of Arizona. Image courtesy NASA/JPL/University of Arizona.
Jim Secosky modified NASA image.
2009-03-04
<a rel="nofollow" class="external free" href="http://hirise.lpl.arizona.edu/PSP_002317_1445">http://hirise.lpl.arizona.edu/PSP_002317_1445</a>