Sol 3968, March 24, 2015. Having driven around the west end of Spirit of St. Louis Crater, the rover turned its Navcam back toward the east to shoot a three-frame composite. This shows the low-relief crater with its dark infill and rubble pile. (Click the image to load a larger version in a new browser tab.)
Opportunity raw images, its latest mission status, a location map. and atmospheric opacity, known as tau.