{{Short description|Valles on Mars}} {{Infobox feature on celestial object |name = Tinia Valles |image = [[Image:Tinia Valles.JPG|200px]] |caption = The Tinia Valles, as seen by [[HiRISE]] (click for full size image to view the [[dark slope streak]]s) |coordinates = {{coord|4.7|S|149|W|globe:mars_type:landmark|display=inline,title}} }} The '''Tinia Valles''' are a set of channels in an ancient valley in the [[Memnonia quadrangle]] of Mars, located at 4.7° south latitude and 149° west longitude. They are 18.7&nbsp;km long and were named after a classical river in Italy.<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> The associated valley has many [[dark slope streak]]s on its walls. These features are widely believed to be avalanches of a thin layer of bright dust that usually covers the dark surface beneath.

== References == {{reflist}} {{Geography of Mars}} {{Portal bar|Solar System}}

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

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