Left eye of stereo mosaic from Opportunity of Site 31, taken by the navcam on Sol 131. Cylindrical-perspective projection, with geometric seam correction. Source image is: /oss/merb/ops/ops/surface/tactical/sol/131/opgs/rdr/ncam/mosaic/cyl/special/1NN131EFF31CYP00P1996L000M1.IMG Michael Cayanan MIPL/OPGS