The Samara Valles are an elongated set of channels featuring an old valley in the middle of the Margaritifer Sinus quadrangle on Mars. It is located at approximately 25.1° south latitude and 19.1° west longitude. They extend 615 km long and were named after the ancient Roman name for modern Somme River, France in 1976.[1]
 The Samara Valles, as seen by HiRISE (scale bar is 500 m) | |
| Coordinates | 25°06′S 19°06′W / 25.1°S 19.1°W |
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