Spirit dug a trench in Laguna Hollow on its sol 47. In these two stereo views you can see the clumping of the soil and the soil adhering to the rover's wheel tread.
The views below will pan in the direction shown by the arrows beneath them when you place the mouse over the arrows. Use the leftmost pair for cross-eyed, rightmost for parallel-eyed.
Click on a thumbnail on the right to view that stereo pair or anaglyph of the scene.