Figure 1
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NASA's Mars Exploration Rover Opportunity used its navigation camera to capture the component images for this stereo, 360-degree panorama near the ridgeline of Endeavour Crater's western rim. The view appears three-dimensional when seen through blue-red glasses with the red lens on the left.

The view is centered toward southeast, from the rover's position just west of the western rim's ridgeline on the mission's 3,659th Martian day, or sol (May 10, 2014). The western rim of the crater extends northward to the left and southward to the right. Endeavour Crater is about 14 miles (22 kilometers) in diameter. Its distant rim is visible on the horizon at center.

The outcrop on the slope to the right of center corresponds to the northern end of an area where a concentration of aluminum-containing clay has been detected in observations by the Compact Reconnaissance Imaging Spectrometer (CRISM) on NASA's Mars Reconnaissance Orbiter. That detection from orbit made the outcrop a favored target for investigation by Opportunity.

This stereo anaglyph combines the left-eye view in Figure 1 and the right-eye view in https://photojournal.jpl.nasa.gov/catalog/PIA18095.