Triangular shaped deposits at cliff edges are termed alluvial fans. Alluvial fans typically form in arid regions were water flow is limited, so deposits of material are not washed away as seen by NASA's 2001 Mars Odyssey spacecraft.

Triangular shaped deposits at cliff edges are termed alluvial fans. Alluvial fans typically form in arid regions were water flow is limited, so deposits of material are not washed away as seen by NASA's 2001 Mars Odyssey spacecraft.
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Channels are a common feature on the margin of Terra Cimmeria where the elevation changes from highland to northern lowlands in this image captured by NASA's Mars Odyssey.
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Windstreak
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Rim Channels
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This VIS image shows a small section of Indus Vallis. Indus Vallis is located in northern Terra Sabaea. Orbit Number 77727 Latitude 18.7218 Longitude 40.0134 Instrument VIS Captured 2019-06-23 08 30
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Small channels dissect this region near Nectaris Fossae
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This small unnamed channel is located in southern Tyrrhena Terra as seen by NASA's 2001 Mars Odyssey spacecraft.
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The channels in this image captured by NASA's 2001 Mars Odyssey spacecraft are dissecting a slope near Huygens Crater.
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Image Number: 6145-45053577Royalty FreeCredit Line:Piemags/PL Photography Limited/SuperStockCollection:PL Photography LimitedStory:Martian Crater TopographyContributor:PiemagsModel Release:NoProperty Release:NoResolution:1419×2926
2001 Mars Odyssey
Mars|