Ah! that explains it I looked at the original data, not Hoagland's version. No wonder I could not see anything.....<br /><br />So looking at the numbered items:<br /><br />A does not look like anything very other than an over-enhanced jpeg of a wind fretted surface.<br /><br />B ditto. Except here the over enhancing looks really, really bodgy with obvious jpeg artifacts.<br /><br />C ditto<br /><br />D "Peculiar layered depression with internal structure" It's called a crater. Endurance, Victoria, Bonneville are all layered depressions with internal structure.<br /><br />E I agree this is most odd, a faceted knob on the side of the tribuatry to Nirgal Vallis. A higher resolution would be nice!<br /><br />F image of gullied slope over enhanced beyond usefulness.<br /> <br />G ehanced past the point of maximum usefulness but yes its a mesa, why it is peculiar I can't say. Nor is is there a "distinct rectangular structure" visible in the original.<br /><br />H over ehnhanced "Area of deep parallel gouges or collapse features" OK, so what's the point?<br /><br />I over enhanced but yes there is locally a crude "Area of parallel structure" What's the point?<br /><br />J "Deep depression anomalous to rest of image" How is known to be a deep depression? In what way is it "anomalous"? It looks like dark material on the lower part of the slope. Remember "Ultreya"?<br /><br />So apart from E, which certaininly does look odd, there isn't really anything remarkable in this image (apart from the fact that it is on Mars, its wonderful Nirgal Vallis, and there is some beautiful wind fretting on the plateau.<br /><br />Incidently, whoever wrote that page needs to be told the following:<br /><br />Labelling an imaging and over enhancing snippets from it with brief captions it is not analysis in any shape or form.<br /><br />Thus its not an analysis even of M1500062, let alonbe the whole of "Malin Space Systems" (who does this guy think he is - the tax office?)<br /><br />Imapges should not be over enha <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em> Arthur Clarke</p> </div>