Caption Bonneville Crater Revealed Half of this 360-degree panoramic camera image of the crater named "Bonneville" was first released on March 15, 2004. The entire mosaic was just recently completed, and reveals not only the crater rim and interior, but Spirit's tracks and a glimpse at part of the rover. The images were acquired on sol 68, March 12, 2004 just one day after Spirit reached this location. The image is a false-color composite made from frames taken with the camera's L2, L5 and L6 filters.