Above the valley there are other layers that are also visible. Auqakuh Vallis is an ancient river valley and is the word for Mars in Quechua, a main language family of the Inca Empire, whose variants are still spoken today.
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Also captured in a Context Camera image, the objective of this observation is to examine a beautiful view of many layers in a valley wall near Auqakuh Vallis.
Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_070827_2100