Creation:Invisible dam

This is a wierd glitch that seemed to happened when the world was created. Even when the world is seeded. When you start the world, you have to turn around and head that way, After a bit you will see a large lake, look at the edge until you see a dip in the ground, and There will be water flowing out of the lake and into the dip. It seems as if the water is being blocked, but there is nothing to block it. If you put dirt in front of the water, then the water will not be blocked anymore, and will begin flowing into the dip.

The seed is -9198001642693697769