In this picture you can see large amounts of erosion which were caused by water.
The main thing that struck me about this photo is the size of the hole that was created by the erosion. It is hard to tell in the picture, but eh hole was probably about the length of a school bus.
Someone may interpret this picture as just a simple hole in the ground, when in fact it is much more impressive than that.
When I saw this erosion in person and when I look at the image I feel awed by the power of water and how it managed to carve through the earth so easily.
I think this picture is about erosion and how this fits into the watershed system.