Nilosyrtis
Nilosyrtis runs from about 280 to 304 degrees west longitude, so like several other features, it sits in more than one quadrangle. Part of Nilosyrtis is in the Ismenius Lacus quadrangle, the rest is in Casius quadrangle.
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Channel in Nilosyrtis that was formed when a lake in a 45 mile wide crater drained, as seen by THEMIS.
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Landing Site in Nilosyrtis, as seen by THEMIS. Site is flat and contains water-altered clay minerals.
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Nilosyrtis, as seen by HiRISE. Click on image to see layers.
Read more about this topic: Casius Quadrangle