re: Spirit has a rocky road ahead.
Traverse Maps for both Spirit and Opportunity.
Credit: NASA/JPL/Cornell/MSSS/OSU /New Mexico Museum of Natural History and Science
A map of Spirit's travels since arriving at Mars Jan. 3, 2004 PST. Spirit is on its way to a large crater nicknamed "Bonneville." The rover is not far from Bonneville's ejecta, the blanket of material expelled from the crater when it was formed.
Key for the above map:
Yellow box — digital map created from Pancam and Navcam images
Outside yellow box — data created using images from the Mars Global Surveyor orbiter and the rover's descent imager camera (DIMES).
Thanks, Tom.