Notice the dark, cliff-forming rocks at the top of the image (A) . Also notice that there seems to be another rock type at the bottom of the image (B) . What observations can you make about the bottom rock unit? Write them down in your notes. Lastly, notice the rocks that have fallen off the cliff-forming unit at the top (C) . Lets take a closer look at one of these and try to determine exactly what the rock type is..