Astronomy:Labou Vallis

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Labou Vallis
Labou Vallis based on day THEMIS.png
Labou Vallis based on day-time THEMIS image
CoordinatesCoordinates: 8°42′S 154°30′W / 8.7°S 154.5°W / -8.7; -154.5

Labou Vallis is a valley in the Memnonia quadrangle of Mars, located at 8.7° south latitude and 154.5° west longitude. It is 222 km long and has dark slope streaks on its walls. The streaks are generally thought to be the dark material that has been exposed by bright dust moving down a steep slope in an avalanche.

Labou Vallis, as seen by HiRISE. The full size image shows old and new (darker) dark slope streaks.


The origin of the word "Labou" was previously stated to be the "French word for Mars," but this was found to be incorrect.[1]