This view from the Surface Stereo Imager on NASA's Phoenix Mars Lander shows the trench informally named 'Snow White' after a series of scrapings were done in preparation for collecting a sample for analysis from a hard subsurface layer.
NASA's Phoenix Mars Lander used its Robotic Arm during the mission's 15th Martian day since landing (June 9, 2008) to test a 'sprinkle' method for delivering small samples of soil to instruments on the lander deck.
This is a terrain model of Phoenix's Robotic Arm workspace. It has been color coded by depth with a lander model for context. The model has been derived using images from the depth perception feature from Phoenix's Surface Stereo Imager (SSI).
This image shows an artist's concept of NASA's Phoenix Mars Lander snapping a picture of its arm, then transitions to the actual picture of the arm in its stowed configuration, with its biobarrier unpeeled.
This image from NASA's Phoenix Mars Lander shows the spacecraft's robotic arm in its stowed configuration, with its biobarrier unpeeled. The arm is still folded up, with its "elbow" shown at upper left and its scoop at bottom right.