{{Short description|Martian valleys}} The '''Louros Valles''' are a system of valleys on the planet Mars in the [[Coprates quadrangle]]. They sit on the southern edge of [[Ius Chasma]]. They are east of [[Noctis Labyrinthus]]. They display many layers in their sidewalls. Many other places on Mars also show rocks arranged in layers. Rock layers can be formed by volcanoes, wind, or water.<ref>{{cite web|url=http://hirise.lpl.arizona.edu?PSP_008437_1750 |title=HiRISE &#124; High Resolution Imaging Science Experiment |publisher=Hirise.lpl.arizona.edu?psp_008437_1750 |access-date=2012-08-04}}</ref> A detailed discussion of layering with many Martian examples can be found in Sedimentary Geology of Mars.<ref>Grotzinger, J. and R. Milliken (eds.). 2012. Sedimentary Geology of Mars. SEPM.</ref>

The Louros Valles are centered at 8.41 S and 278.23 E, and were named after a modern river in Greece. The name was approved in 1982.<ref>[https://planetarynames.wr.usgs.gov/nomenclature/SearchResults;jsessionid=75C005EBABDC58C0045BD56A9C768CFB Gazetteer of Planetary Nomenclature] {{dead link|date=September 2023}}</ref>

<gallery class="center" widths="190px" heights="180px" > File:Mars Valles Marineris.jpeg|Wide view of Mars centered on Valles Marineris, taken with Viking images Note, this picture can be greatly enlarged by clicking on it several times. File:Louresvallesodyssey.jpg|Wide view of part of Ius Chasma with the Louros Valles along its southern margin. File:Louresvallesmola.jpg|Labeled view of part of [[Valles Marineris]]. Colors indicate elevation. The Louros Valles are in the middle left of the image. File:Louresvallesctxwide.jpg|Wide view with CTX image of part of the Louros Valles File:Louresvallesctxclose.jpg|Closer view with CTX image of part of the Louros Valles </gallery>

The following set of images start with wide views of the whole planet that are centered near the Louros Valles. They transition to close views with enlarged HiRISE images.

<gallery class="center" widths="190px" heights="180px" > File:ESP 048980 1725layers.jpg|Wide view of layers in the Louros Valles, as seen by HiRISE under HiWish program. The Louros Valles are part of [[Ius Chasma]]. File:48980 1725layersclose2.jpg|Close view of layers in the Louros Valles, as seen by HiRISE under HiWish program; this is an enlargement of a previous image. File:48980 1725layers.jpg|Close view of layers in the Louros Valles, as seen by HiRISE under HiWish program; this is an enlargement of a previous image. File:48980 1725layersclose.jpg|Close view of layers in the Louros Valles, as seen by HiRISE under HiWish program; this is an enlargement of a previous image. File:ESP 048980 1725layersclosecolor.jpg|Close view of layers in the Louros Valles, as seen by HiRISE under HiWish program; this is an enlargement of a previous image. </gallery>

== References == {{reflist}}

{{Geography of Mars}}

[[Category:Valleys and canyons on Mars]] [[Category:Coprates quadrangle]]