Oahe Downstream Recreation Area by Congress transferred ownership of the recreation area to the State of South Dakota in 2002. Oahe Downstream Recreation Area Oahe Downstream Recreation Area is a state recreation area in Stanley County, South Dakota in the United States. The recreation area is named for being immediately downstream of the Oahe Dam and Lake Oahe, a U.S. Army Corps of Engineers dam and reservoir. The recreation area is located along the Missouri River and is popular for camping, fishing and other water-based recreation. The area is located about 7 miles upstream of Pierre - the state capitol. The recreation area was
Lake Sakakawea Lake Sakakawea Lake Sakakawea is a large reservoir in the north central United States, impounded by Garrison Dam, a U.S. Army Corps of Engineers dam located in the Missouri River basin in central North Dakota. Named for the Shoshone-Hidatsa woman Sakakawea, it is the largest man-made lake in the State of North Dakota, the second largest in the United States by area after Lake Oahe, and the third largest in the United States by volume, after Lake Mead and Lake Powell. The lake is located about from the state capital of Bismarck; the distance by the Missouri River is about