Baltra - Sol 896

NASA's MER Opportunity recently stopped to analyze an exposure of rock near Beagle Crater, on a target nicknamed Baltra. Nearly 100 Soles have passed since Opportunity had last analyzed one of the now-familiar rock exposures seen on the Plains of Meridiani. The Rover ground a mm-deep (0,12"-deep) hole in the rock using the RAT on Sol 893 (July 29, 2006) while stationed about 25 mt (82 feet) from the South-West rim of Beagle Crater.
Scientists wanted to analyze the outcrop one more time before driving the Rover onto the ring of smooth material surrounding Victoria Crater. Opportunity's analysis showed the rock to be very similar in its elemental composition to other exposures encountered during the Rover's Southward trek across Meridiani Planum.
Opportunity acquired the image data shown here shortly after noon on Mars on Sol 896 (Aug. 1, 2006) with the PanCam after backing up 1 mt (3,3 feet) from Baltra to make sure that the target was in full Sunlight.

This is an approximately true-color Pancam image, generated from mathematical combinations of calibrated left-eye images using filters ranging from 432-nanometer to 753-nanometer wavelengths.