| Asopus Vallis | |
|---|---|
Asopus Vallis, as seen by HiRISE. |
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| Naming | a classical name for the modern Hagios River, Greece |
Asopus Vallis is a valley in the Memnonia quadrangle on Mars, located at 4.4° south latitude and 149.7° west longitude. It is 33 km long and was named after a classical name for the modern Boeotian Asopus river in Greece.[1]