Labou Vallis based on day-time THEMIS image
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.(citation?)
The origin of the word "Labou" was previously stated to be the "French word for Mars," but this was found to be incorrect.
- "Planetary Names: Vallis, valles: Labou Vallis on Mars". United States Geological Survey. https://planetarynames.wr.usgs.gov/Feature/3194.
Original source: https://en.wikipedia.org/wiki/ Labou Vallis. Read more