Mangala Valles is a complex system of criss-crossing channels on Mars, located in the Tharsis region originating in the Amazonian epoch. "Mangala" comes from the word for Mars in Sanskrit. The channels were probably carved by water many thousands of years ago and lack tributaries. There are many wind-sculpted ridges or yardangs covering many of the surfaces in the Mangala Vallis region.

The Mangala Valles is referred to in Michael Crichton's book Sphere.

This canyon is described in Sphere, to be 2,500 miles long and two and a half miles deep-ten times the lengthand twice the depth of the Grand Canyon.

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