Nanedi Valles is a large valley in the Lunae Palus quadrangle

Lunae Palus quadrangle

The Lunae Palus quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey Astrogeology Research Program. The quadrangle is also referred to as MC-10 ....

 of Mars

Mars

Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...

, located at
4.9° N and 49.0° W. It is 508.0 km long and was named for the word for "planet" in Sesotho, the national language of Lesotho, Africa.

Nanedi Valles is located between Shalbatana Vallis

Shalbatana Vallis

Shalbatana Vallis is an ancient water-worn channel on Mars, located in the Oxia Palus quadrangle at 7.8° north latitude and 42.1° west longitude. It is the westernmost of the southern Chryse outflow channels...

 and upper Maja Valles

Maja Valles

Maja Valles is a large, ancient outflow channel in the Lunae Palus quadrangle on Mars. Its location is 12.6° north latitude and 58.3° west longitude. The name is a Nepali word for "Mars". Maja Valles begins at Juventae Chasma. Parts of the system have been partially buried by thin volcanic debris...

. It is 4 km wide at its northern end. Its shape is similar to that of Nirgal Vallis

Nirgal Vallis

Nirgal Vallis is a long river channel in the Coprates quadrangle and the Phoenicis Lacus quadrangle of Mars at 28.4° south latitude and 42° west longitude. It is 496 km long and is named after the word for "Mars" in Babylonian. The western half of Nirgal Valles is a branched system, but the...

, being very sinuous and having only a few short branches.

Unusually for Martian valleys, the individual channel structures within the wider valley floors can occasionally be seen in this system.