Lake Oahe Lake Oahe Lake Oahe (oh-WAH'-hee) is a large reservoir behind Oahe Dam on the Missouri River; it begins in central South Dakota and continues north into North Dakota in the United States. The lake has an area of and a maximum depth of . By volume, it is the fourth-largest reservoir in the US. Lake Oahe has a length of approximately and has a shoreline of . 51 recreation areas are located along Lake Oahe, and 1.5 million people visit the reservoir every year. The lake is named for the 1874 Oahe Indian Mission. Lake Oahe begins just north of
Norris Dam State Park Norris Dam State Park Norris Dam State Park is a state park in Anderson County and Campbell County, Tennessee, in the southeastern United States. The park is situated along the shores of Norris Lake, an impoundment of the Clinch River created by the completion of Norris Dam in 1936. The park consists of managed by the Tennessee Department of Environment and Conservation. The park also administers the Lenoir Museum Complex, which interprets the area's aboriginal, pioneer, and early 20th-century history. Norris Dam was the pilot project of the Tennessee Valley Authority, a Great Depression-era entity created by the United States