The origin of Valles Marineris remains unknown, although the most likely hypothesis is that it was formed as a crack billions of years ago when the planet cooled.

Valles Marineris is divided into several areas. At the west end area is called the Labyrinth of Night, to the east – and Io Teton Canyon, followed by Milas and Ophir, another east – Koprat, Ganges, Eos and Capri. Then there are the ruined areas of relief, called the chaos that end in the plain of Chryse.

or comparison, the Earth’s Grand Canyon in the United States has a length of 800 kilometers, 30 kilometers wide and the depth of 1.8 kilometer. If Valles Marineris place in the U.S., it will extend throughout the state, from the Atlantic to the Pacific.

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