This landslide deposit is located in an unnamed crater in Syrtis Planum.
Photo credit: NASA/JPL/Arizona State University
Note: I rather like this picture. The trail of the landslide is very clearly defined, with the high walls of regolith along the two sides. As for that knob of dirt and/or rock jutting out along the side of the crater, I thought at first that that was a second landslide deposit; however, now, I think it's part of the crater wall that didn't succumb to the force of the Martian soil that did fall.