Samara Valles [SEP] located on astronomical body
Samara Valles
Samara Valles is a valley bordering the Memnonia quadrangle and the Margaritifer Sinus quadrangle on Mars, located at approximately 25.1° south latitude and 19.1° west longitude. It is 615 km long and was named after the ancient name for modern Somme River, France.
States. The name for the whole system of canyons is Valles Marineris. Starting at the west with Noctis Labyrinthus in the Phoenicis Lacus quadrangle, the canyon system ends in the Margaritifer Sinus quadrangle with Capri Chasma and Eos Chasma (in the south). The word Chasma has been designated by the International Astronomical Union to refer to an elongate, steep-sided depression. Valles Marineris was discovered by and named for the Mariner 9 mission. Moving east from Noctis Labyrinthus, the canyon splits into two troughs, Tithonium Chasma and Ius