The Salton Sea is the largest body of water in California. It was created when an engineering accident forced water from the Colorado river into one of the hottest basins in the US. A town thrived, for a while, but now it looks like a scene from Fallout3.
At first it was thought that the 350 square mile wetlands were an unintentionally created oasis and the town thrived. Resorts were opened, real estate development boomed, and marinas operated at capacity... then the forces of nature decided to reclaim these badlands, leaving behind the twisted remains of civilization.