Tinia Valles

{{Short description|Valles on Mars}}

{{Infobox feature on celestial object

|name = Tinia Valles

|image = 200px

|caption = The Tinia Valles, as seen by HiRISE (click for full size image to view the dark slope streaks)

|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 km long and were named after a classical river in Italy.{{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}} The associated valley has many dark slope streaks 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.