Lake Oahe

Water type: Artificial lake
Continent: North America
Climate: Temperate

Lake Oahe 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 370,000 acres (1,500 km2) and a maximum depth of 205 ft (62 m).

By volume, it is the fourth-largest reservoir in the US.

Lake Oahe has a length of approximately 231 mi (372 km) and has a shoreline of 2,250 mi (3,620 km).

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.

Join us!

Waters Search

Waters Search

Recently added waters

Stangan River

Rane River (Ranealven)

Rottnan River

Fryken Lakes

Malgomaj Lake

Malgomaj River

Ricklean River

Karats Lake

Parlalven River

Orealven River