Mamers Valles [SEP] located on astronomical body
Mamers Valles
Mamers Valles is a long, winding canyon in the north of Mars. It covers 1000 km, cutting through the cratered uplands of the Arabia Terra, from the Cerulli Crater to the Deuteronilus Mensae near the edge of Mars' vast northern lowlands. Through its midsection, it averages a width of 25 km and a depth of 1200 meters.
The most popular theory states that the canyon was likely formed by either water or lava, with the flow from south to north and additional material flowing from
the guardian dragon. Cadmus was the legendary founder of Thebes, and had come to the spring to fetch water. The name was approved by the International Astronomical Union (IAU) in 1958.
There appeared to be a large canal in this region called Nilus. Since 1881–1882 it was split into other canals, some were called Nilosyrtis, Protonilus (first Nile),and Deuteronilus (second Nile).
Physiography and geology.
In eastern Ismenius Lacus, lies Mamers Valles, a giant outflow channel.
The channel shown below