This observation shows a tongue-shaped flow of material below a scarp in Phlegra Montes, a range of curving mountains and ridges on Mars.
This type of feature is sometimes formed by a debris flow, a landslide, or the flow of ice-rich material. However, the source of the material and how it was deposited here remains unclear.
Photo credit: NASA/JPL/University of Arizona
Note: For an mp4 video clip discussing the above-mentioned area, click here.