Oahe Dam Oahe Dam The Oahe Dam is a large earthen dam on the Missouri River, just north of Pierre, South Dakota, United States. The dam creates Lake Oahe, the fourth largest man-made reservoir in the United States. The reservoir stretches up the course of the Missouri to Bismarck, North Dakota. The dam's power plant provides electricity for much of the north-central United States. It is named for the Oahe Indian Mission established among the Lakota Sioux in 1874. The project provides flood control, Hydropower generation, irrigation, and navigation benefits. Oahe Dam is one of six Missouri River mainstem dams, the next
Norris Dam State Park dismantled and kept in storage until 1978, when the Park Service donated it to the State of Tennessee. Along with the oxen-driven threshing machine and a mini-museum of 19th and early 20th-century farm tools, the barn houses a section of the massive Tregonia Elm, which was once believed to be the largest elm tree in the United States. 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