The Imager from Mars Pathfinder took this image of the rock dubbed Yogi. The soil in the foreground has been the location of multiple soil mechanics experiments performed by Sojourner's cleatedwheels. Pathfinder scientists were able to control the force inflicted on the soil beneath the rover's wheels, giving them insight into the soil's mechanical properties. The soil mechanics experiments were conducted after this image was taken.   (22/53)