Lake Oahe Pierre, South Dakota and extends nearly as far north as Bismarck, North Dakota. Mobridge, South Dakota is located on the eastern shore of the central portion of the lake. Bridges over Lake Oahe include US Route 212 west of Gettysburg, South Dakota and US Route 12 at Mobridge. The former town of Forest City has been flooded beneath Lake Oahe, about 9 miles west of Gettysburg. Prehistoric archaeological sites have been explored in the area, including Molstad Village near Mobridge. It dates to before the emergence of the Arikara, Hidatsa and Mandan as separate peoples, and has been designated as
Miguel Alemán Dam and Mixe families. There been a re-evaluation of the project's impact on the environment. The dam has a capacity of 8 million m (2,113,400,000 US gallons), from which 6.77 million m (1,788,500,000 US gallons) is available for power generation. The dam has a length of . The Temascal hydroelectric plant located east of the dam generates about 725 million kilowatts a year. Miguel Alemán Dam The Miguel Alemán Dam is on the Tonto River in the Papaloapan Region of Oaxaca state in southern Mexico, just upstream from the town of Temascal or Nuevo Soyaltepec, forming the Miguel Alemán Lake with