Sabis Vallis is an ancient river valley in the

Memnonia quadrangle The Memnonia quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Memnonia quadrangle is also referred to as MC-16 (Mars Chart-16). The quadrangle is ...

of Mars, located at 5.3° south latitude and 152.5° west longitude. It is 206 km long and was named after a classical name for the present

Sambre River The Sambre (; nl, Samber, ) is a river in northern France and in Wallonia, Belgium. It is a left-bank tributary of the Meuse, which it joins in the Wallonian capital Namur. The source of the Sambre is near Le Nouvion-en-Thiérache, in the Aisne ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

and

Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...

References

Valleys and canyons on Mars Memnonia quadrangle {{Mars-stub