Three-frame composite image from the right-side Navcam, looking back at wheel tracks over the sand ripples along the rover’s course. (Curiosity was driving south in reverse.) At some point, perhaps only a couple of meters back, the rover drove out of the landing ellipse.
NASA description (leftmost image): This image was taken by Navcam: Right B (NAV_RIGHT_B) onboard NASA’s Mars rover Curiosity on Sol 674 (2014-06-29 18:49:49 UTC).
Sol 674 raw images (from all cameras), and Curiosity’s latest location map.