HiRISE Image TRA_000823_1720 taken 30-Sept-2006 of a portion of the floor of Ius Chasma, one branch of the giant Valles Marineris system of canyons. (Center at -7.7 degrees latitude, 279.5 degrees East longitude). Resolution down to 0.5 meters (0.26 meters/pixel). This means that when you are zoomed in fully, you are seeing about an 8-acre patch of ground... when zoomed out all the way, you're looking at 200 acres. See the NASA HiRISE web site for the latest information.

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