Rocky Outcrop ("Rideout") near the Edge of Endeavour Crater - Sol 2685 (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)

Caption NASA:"NASA's Mars Exploration Rover Opportunity looked across a small Unnamed Crater on the Rim of a much larger one to capture this raw image from its PanCam during the Rover's 2685th Martian Day, or Sol, of work on Mars (Aug. 13, 2011).
Opportunity had arrived at the Western Rim of the about 13-mile-diameter (approx. 21-Km-diameter) Endeavour Crater four days earlier. A portion of the N/E Rim of Endeavour forms the distant horizon in this view. An Unnamed Crater about 66 feet (approx. 20 meters) in diameter is on the Endeavour Rim near Opportunity's arrival point. From a position South of Odyssey, this view is dominated by a rock informally named "Ridout" on the N/E Rim of Odyssey. The rock is roughly the same size as the Rover, which is 4,9 feet (such as 1,5 meters) long".