Oahe Dam (S.D.); Reservoirs South Dakota; Missouri River Basin Project (U.S.); United States. National Park Service; United States. Department of the Interior; Smithsonian Institution
The National Park Service, Department of Interior, and the Smithsonian Institute have recommended preserving inundated landmarks.
Full page article with photos of the intake structures, the outlet works (stilling basin), the east embankment and the completion of the mining of tunnel number two. Paper very fragile, not able to scan. Available for viewing or copy at the South...