HiRISE 3D: Maja Valles
The Maja Valles are a large system of ancient outflow channels, many of which were found by the Viking Orbiters.
Both water floods and lava flows have been identified.
https://www.uahirise.org/anaglyph/ESP_073719_1980_ESP_073864_1980_RED
NASA/JPL-Caltech/UArizona
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