The document summarizes information about Superstition Mountain located in Arizona. It discusses the geological formation of the mountain approximately 25 million years ago from volcanic activity. It is a popular hiking destination close to Phoenix. The document also mentions legends surrounding the mountain, including the Lost Dutchman's Gold Mine that was supposedly discovered but never found. Additionally, it provides details about the Superstition Mountains Recharge Project, a water storage project completed in 2011 with the capacity to store 25,000 acre-feet of water underground in the East Salt River Valley near Phoenix.