{{Short description|Valles on Mars}} {{Infobox feature on celestial object |name = Simud Valles |image = [[Image:Simud Valles close-up.JPG|200px]] |caption = Close-up of the Simud Valles, as seen by HiRISE. |coordinates = {{coord|19.8|N|37.8|W|globe:mars_type:landmark|display=inline,title}} }} The '''Simud Valles''' are an ancient [[outflow channel]] system in the [[Oxia Palus quadrangle]] of [[Mars]], located at 19.8° N and 37.8° W. They are 945&nbsp;km long and were named for the word for "Mars" in Sumerian. Note: [[Descriptor term]] changed to the plural (valles), and coordinates redefined 3/31/2008.<ref>{{cite web |url=http://planetarynames.wr.usgs.gov |title=Gazetteer of Planetary Nomenclature |website=[[Astrogeology Research Program]] |publisher=[[United States Geological Survey]] |access-date=20 March 2022}}</ref>

==See also==

* [[Geology of Mars]] * [[HiRISE]] * [[Outflow channels]]

== References == {{commons category|Simud Valles}} {{reflist}}

==Further reading==

*{{cite book |author=Baker, V.R. |author2=Carr, M.H. |author3=Gulick, V.C. |author4=Williams, C.R. |author5=Marley, M.S. |name-list-style=amp |chapter=Channels and Valley Networks |title=Mars |editor=Kieffer, H.H. |editor2=Jakosky, B.M. |editor3=Snyder, C.W. |editor4=Matthews, M.S. |publisher=[[University of Arizona Press]] |location=Tucson, AZ }} *{{cite book |author=Carr, M.H. |chapter=Channels, Valleys and Gullies |title=The Surface of Mars |date=11 January 2007 |publisher=[[Cambridge University Press]] |isbn=978-0-521-87201-0 }}

{{Geography of Mars}} {{Portal bar|Solar System}}

[[Category:Valleys and canyons on Mars]] [[Category:Oxia Palus quadrangle]]

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