The Shocking Truth

So does this lake hole take people to alien place once inside? The answer is no. The Lake Berryessa is a man-made lake. And this mysterious spillway was formed at the same time the lake was created. Being the seventh largest artificial lake in California it harbors massive water. That is why this spillway was made. Find out how a hole was helping this giant lake controlling the water inside it. The spillway prevents overflow of water in the lake. Additionally, it also did not let water build pressure in the area and around the dam.