Skip to main content
Lake Oahe

Official sources & verification

Managed by Recreation Area

Verify before you go

Source of truth

Verify by phone or mail

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: Jun 12, 2026. Spot an error in our data?

About

Lake Oahe is a large reservoir behind the 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.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify alerts and operational details with the managing agency below.

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Spot an error in our data on Lake Oahe?