 Niger Vallis is the middle of the three channels pictured, joining Dao Vallis in the upper center of the image. The direction of water flow was toward the bottom of the image. | |
| Coordinates | 35°24′S 267°48′W / 35.4°S 267.8°W |
|---|---|
| Length | 333.0 km |
| Naming | River in Africa. |
Niger Vallis is a valley on Mars that appears to have been carved by water. It has been identified as an outflow channel.[1] It merges with Dao Vallis which runs southwestward into Hellas Planitia from the volcanic Hadriacus Mons.[2] Like Dao, it was formed around the Late Noachian and Early Hesperian Epochs.[2] It is named after the Niger River in Africa.
- ^ Carr, M.H. (2006), The Surface of Mars. Cambridge Planetary Science Series, Cambridge University Press.
- ^ a b Crown, D. A.; Bleamaster, L. F.; Mest, S. C. (December 2003). "Geologic Evolution of Dao Vallis, Mars". AGU Fall Meeting Abstracts. 2003. American Geophysical Union, Fall Meeting 2003, abstract #P11B-1035. Bibcode:2003AGUFM.P11B1035C.