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
Beaver Dam, Arizona to Arizona State Route 389 (which is paved) — and even at that, is connected only to the rest of the "Arizona Strip" (that part of Arizona separated from the rest of the state by the Grand Canyon), not to Arizona at large. The Virgin River Gorge is located just to the east of Beaver Dam. The Post Office is located in Beaver Dam on McKnight Boulevard. Fire Station No. 1 is located in Beaver Dam (No. 2 is located in Desert Springs, and No. 3 is located in Scenic). Beaver Dam has a large population of "snowbirds" (retirees from