This left eye of a stereo pair of views in a cylindrical-projection projection was created from navigation camera images that NASA's Mars Exploration Rover Spirit acquired on sol 122 (May 7, 2004). Spirit is sitting at site 43. The rover is on its way to the "Columbia Hills," which can be seen on the horizon. Spirit will spend the next 37 sols or more journeying to the base of these hills with the goal of learning more about Gusev Crater's past.
See PIA05889 for 3-D view and PIA05891 for right eye view of this left eye cylindrical-perspective projection.