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Last updated on April 16, 2014 at 6:17 EDT
The Orcus Patera region on MarsArea between Elysium and
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The Orcus Patera region on MarsArea between Elysium and Amazonis Planitia on Mars

March 20, 2003
This Mariner 4 image of the Orcus Patera region was taken with the sun only 13 degrees from vertical, so the topography is difficult to discern. Some raised areas can be seen at upper left. Orcus Patera is located in western Amazonis Planitia.