Simois Colles is a region of colles (hills) in the northwest of Phaethontis quadrangle of

Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terr ...

. It is located around 37.72° south latitude, and 176.59° west longitude. The region is across, and was named after an

albedo feature An albedo feature is a large area on the surface of a planet (or other Solar System body) which shows a contrast in brightness or darkness (albedo) with adjacent areas. Historically, albedo features were the first (and usually only) features to b ...

References

External links

* Phaethontis quadrangle {{Mars-stub