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
Norris Dam State Park State of Tennessee in 1953. The state developed the more modern west section of the park in the 1970s, and obtained control of the marina in 1986. The CCC-built area was listed on the National Register of Historic Places in 2014. The older east section of Norris Dam State Park has 19 rustic cabins, a 40-site campground, and a convention house known as the "Tea Room". The newer west section has 10 deluxe cabins, a 50-site campground, and a recreation center. The park offices are located in the west section. The marina is located just west of the dam. Both