On sol 137 (December 24, 2012), Curiosity sat inside a depression named "Yellowknife Bay." The "shore" of Yellowknife Bay is a layer of rock that makes a distinctive step down. This view is composed of left Mastcam (Mastcam-34) images.
The click-to-enlarge version is shown at half the full resolution. Visit Damien Bouic's website to see it at full resolution. Curiosity also took data for a full 3D panorama at this location.
Original image data dated on or about December 24, 2012