Close-up of dunes, as seen by hirise.  Location is 42.7 S and 38.0 E.
Jim Secosky modified nasa image.
1/19/10
<a rel="nofollow" class="external free" href="http://hirise.lpl.arizona.edu/ESP_016036_1370">http://hirise.lpl.arizona.edu/ESP_016036_1370</a>