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Ius Chasma, Martian Mountain Ruins:
Ancient Mars Civilization Evidence #89-88
Link to original NASA/JPL/ASU image source: http://photojournal.jpl.nasa.gov/catalog/PIA09980
NASA says: "This image of Ius Chasma shows several landslide deposits and groups of sand dunes."
Landslide deposits? Groups of sanddunes?
Below is a closeup of the dunes surrounding the central crater. I have found no other images of the geometric anomaly above other than that shown.
Although a neat image, the dunes surrounding the central crater hardly show the profound geometry exhibited in the Mountain Ruins.
Original Sept. 2008 Mars Odyssey Image: http://photojournal.jpl.nasa.gov/jpeg/PIA11174.jpg
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