The black-and-white base image in this view was taken by NASA's Mars Exploration Rover Spirit with its navigation camera during the rover's 658th Martian day, or sol (Nov. 8, 2005). The location is on the eastern side of "Husband Hill." The superimposed colored lines and computer image of the rover indicate Spirit's path ahead and the intended position at the end of the drive. Rover-team scientists and engineers use this type of simulated image as a help in planning activities for succeeding sols.